"In October of 2007, - at Teito University's School of Science and Engineering, - in Physics Department Lab 13, - the university's associate professor, Yukawa Manabu, - met Utsumi Kaoru from the North Kaizuka Police Department." "Truly amusing." "What's so amusing about this?" "!" "This pair... couldn't have been more different, and never agreed on anything." "Yet, they went on to solve countless mysteries." "It really caught fire..." "I've solved the mystery of spontaneous human combustion." "It was probably the same setup as this one." "Professor Yukawa, I think..." "We might be able to solve the mystery." " What?" "I see the whole picture behind this case." "You figured out the murderer and how it was done?" "Yes." "I still need to prove my hypothesis." "What now?" "You solved the mystery?" "It's as I thought." "I see." "Did you figure something out?" "It's possible." "This solution would explain everything." "The perpetrator used ultrasound." "Huh?" "!" "There's no other explanation." "I'm sure there's more to this case." "What makes you think that?" "A detective's intuition." "Let's investigate one thing at a time, - based on your intuition." "Please run!" "I can't do that." "I don't want you to die, either." "What you will see today happened three years before they met, - when the associate professor was still an assistant professor." "Chapter 0" "Come on!" "What a great place." "So close to the sea, too." "Not to mention it's quiet." "I want to live in a place like this one day." "Yeah." "Me, too." "This will be my last home." "Last home?" "You mean this is where you'll spend the rest of your life?" "You're still in a good shape, boss!" "Namie-San told us earlier - about that ship in a bottle on the left side..." "Is it true you made that recently?" "When I was healthy, it only took me three days to make, - but that one took me three months." "I couldn't make it even if I had a whole year!" "That's really amazing." "Dad, - you should be happy that they're praising you." "Actually..." "I made this on my own, too." "What?" "A walking stick?" "You can pull this part out!" "I used a collapsible umbrella to make it." "Look, " "I can pull things that are far away." "That's convenient." "Press this switch, and..." "Oh, a laser pointer?" "Namie, can you grab that book for me?" "And then, I end up getting it." "It's convenient when I can't remember the title!" "I see." "If you can still make something like that, - you'll be back at work in no time!" "I'll pour you another glass." "No, I've had enough to drink." "I'll retire early tonight." "What?" "You're going to sleep already?" "Can you take care of everything, Namie?" "All right." " But..." "Make yourselves at home." "Yes, sir." "I'm sorry." "I know you came a long way to see him." "Is his rehab coming along well?" "Any aftereffects from the stroke?" "I heard it was difficult for him to walk on his own." "He can use the walking stick to stand up, but..." "I have to be with him for most of the time." "I see." "Still, it's an impressive recovery." "After all, he can make something like that." "Um..." "Who lives in there?" "Is it his son?" "I'll go get some more ice." "Die!" "Yes!" "Use your brain..." "F-Fire?" "!" "It snapped?" "Damn it!" "What do you think, sir?" "No idea." "I specialize in criminal psychology." "I see." "You graduated from this university, right?" "Yes, I used to take your classes." "I don't recognize you." "I skipped class very often." "Thank you for your time." "Kusanagi, I can't imagine what you were like as a student." "I was at my part-time job a lot, and I barely came to school." "Is this your first time back since graduation?" "You must be feeling nostalgic!" "You really think I'm in that kind of mood right now?" "I'm sorry." "Yuge, when will you stop being such a rookie?" "I'm sorry." "Wanna go?" "Yeah!" "Yukawa Manabu, Associate Professor Yukawa Manabu?" "What's the matter?" "One of my classmates had the exact same name." "He was an unparalleled genius even when he was a student." "But he was a bit of a weirdo." "We used to call him..." "Galileo, the weirdo." "Physics Department Lab 13 Yukawa Manabu, Associate Professor" "Galileo, the weirdo." "Professor Yukawa is away at the moment." "I believe he will be back soon." "Do you have an appointment?" "We were classmates." "Would you like to wait inside?" "Yeah, sure." "Come in." "Sit down." "Shionoya, I got the data for plasma flow in the experiment." "Okay, let's move on to the ER fluid experiment." "Are you ready?" "Is 1,500 sufficient for the magnetic stirrer?" "Yeah." "What about the voltage?" "Set it to 20V." " Got it." "Starting." "Yeah." "Pay attention." "The ER fluid's viscosity will increase." "We just have to drip in liquid paraffin, and..." "It gets bubbly!" "What's this phenomenon called?" "I wonder." "Huh?" "This... isn't right!" "Oh, there he is." "Professor." "Professor Yukawa." "It's time for the workshop." "Please return to the lab." "That was a nice nap." "You're an assistant professor now, you should act more like one." "I'm well aware of that." "I'm not complaining here." "I'm just giving you an advice as someone who has been here for longer..." "Kuribayashi." "I'm sorry, please forget what I said..." "What is that?" "What should I do?" "!" "I don't know!" "Calm down!" "Just calm down!" "Just open the window!" "Oh, it's close to me." "Oh!" "Professor Yukawa!" "I'm sorry, something went wrong with the experiment!" "Just make the bubbles stop!" "It won't stop bubbling!" "This is quite an amusing sight." "Yukawa!" "It's me, Kusanagi." "Kusanagi?" "Why are you here?" "I'm here to take care of some business." "I'm a police detective now." " We need help!" "Professor Yukawa!" " You're a police detective?" "I see." "It's been a long time." "It's been 12 years!" "Professor!" "Help!" "You haven't changed!" "Who are you?" "It's Kobuchizawa!" "Professor!" "Finally done." "I'm beat!" "I can't believe someone like you... would make such a novice mistake." "I'm sorry." "However, - for students of physics such as yourself, - an "non-everyday" occurrence could prove to be useful." "It could lead to creative ideas one day." "Yeah!" "See?" " See what?" "Don't get carried away." "You came on a bad day, Kusanagi." "No, that was fun." "So, what did you have to discuss with me?" "I want to ask for your help with a case." "Help with a case?" "There was a fire last week at Hinoe Island, - and a man's body was found." "At first, we thought he burned to death, - but the situation changed after an autopsy." "Nice to meet you, " "I'm Jounouchi, a medical examiner." "I'm Kusanagi from North Kaizuka Police Department." "Nice to meet you." "I'm Yuge." "Nice to..." "I didn't know there was such a beautiful medical examiner here." "Oh, you!" "You're good." "Tomonagi Kunihiro, male, 31 years old." "I want you to look over here." "Can you see a puncture right here?" "A puncture?" "A stab wound." "Ah, please throw up over there." "The size of the wound is... 3 cm across and 0.5 cm deep." "It has penetrated... his chest." "In other words..." "It was murder." "The murderer most likely had used a blade at least 30 cm long - to impale the victim." "Impaled?" "!" "At least 30 cm?" "!" "Perhaps, with a Japanese sword." " I see." "That is quite interesting, but what do you want from me?" "Actually, it was a locked-room murder." "Locked-room?" "!" "The room was locked from inside." "We don't know how the murderer escaped." "Seriously?" "!" "He must have had a spare key." "You can't lock the door chain with a spare key." "He must have escaped from the window." "It wouldn't be "locked-room" if that was the case." "The windows were equipped with anti-theft lattice panels." "See?" " Why are you..." "Were there footprints near the house?" "None at all." "And of course, zero witness accounts of suspicious entry." "A real locked-room murder!" "The murderer appeared out of nowhere, - stabbed the victim to death, - then disappeared without a trace!" "Exactly." " No way!" "It was teleportation!" " Huh?" "And it was a man with a Japanese sword..." "A samurai?" " Samurai?" "!" "Maybe a samurai time-slipped!" "Time-slipped?" "!" "What an unscientific thing to say!" "Shionoya, that's impossible." "Impossible?" "Who proved that?" "What?" "On the November 2nd, 2000, - the BBS post of a man gathered attention in the internet." "He claimed to be a time traveler from year 2036." "A time traveler?" "!" "He came from the future?" "Description of the logic behind his time machine - and its navigational methods were very detailed." "Many predictions he made up to year 2036..." "For example, the Iraq War, - mad cow disease in America, - the death of the Pope..." "All of them were accurate." "Really?" " No way!" "And on March of 2001, - he claimed that he had completed his mission, - and never appeared again." "If his words were true, - time-slipping would be possible." "It's possible!" "Hold on, Professor Yukawa!" "A physics professor shouldn't admit time-slipping is possible." "Of course, it's absolutely impossible to - create a time machine with existing technology." "However, - ever since Einstein published his theory of relativity, - the concept of time has become a controversial topic." "I don't think time-slipping is absolutely impossible." "Well, yes, but..." " I see." "It's the holy grail of science." "In that case, - the person who time-slipped would have to come from the future." "A samurai from the past - goes out of his way to kill someone, - then disappears?" "It's illogical." "Yeah!" "I said, "for example"." "No, you didn't!" " Did too!" "The locked-room murder you mentioned is probably - just a trick that has nothing to do with physics." "You don't need a physicist." "Yeah, Professor Yukawa is busy." "Please leave." "You might be able to solve the trick, though." "Remember back in the day?" "Back in the day?" "Yukawa helped solve murder cases - using his genius-level brain when he was a student." "What?" "Is that true, Professor?" "That's all in the past." "What kind of cases were they?" "I don't have the time to help the police right now." "Let's start our workshop." "Come on, get ready!" "Yukawa..." " Please leave." "Thanks for coming." "Actually, the scene of crime - is near a great beach no one really knows about." "There will be heaps of young girls in bikini!" "Did you actually think that would convince Professor Yukawa to..." "Huh?" ""Heaps"?" "And then some." "He's tempted?" "Galileo 0 Controls" "Wonderful." "A paradise for men." "Total paradise." "All right, let's go to the crime scene." "Crime scene?" "The crime scene for the murder." "That's why we're here." "I came for here a vacation." "You can save that for later." "Let's go." "Professor." "I'll go pick up girls." "I didn't know you were so talented." "I kept it secret from you." "Did you two come here alone?" "Do you like physics?" "What's this guy talking about?" "Is he crazy?" "I guess." "It was already a sea of fire when the firetrucks arrived." "The door didn't open, so they knocked it down and put out the fire." "I see." "The aftermath of a fire is quite terrifying." "That's the bedroom." "The parent lived in the main building, - and his son Kunihiro, the victim, lived here." "The victim was found lying here." "A wireless phone was found beside him, - so we think he was on the phone." "A wireless phone?" "There are no records of a phone call." "Maybe he was attacked as he was about to make a call." "Judging from the autopsy report, - the murderer stabbed him from behind." "Then they set the place on fire." "The fire ignited the fireworks in the room, - and apparently it was quite a sight." "What I want you to figure out is how the murderer left this room." "Indeed, there's nowhere to leave." "In that case, this would be the most logical solution." "Yeah?" " The murderer never left the room." "Never left the room?" " For example, - the body of the dead murderer might be hiding under the floor." "What?" "Under the floor here?" "I don't see anything." "Oh, too bad." "You weren't sure?" "If you have a hypothesis, - and it's proved incorrect, - you abandon that idea immediately." "That's a physicist's approach to problems." "So, how did the murderer leave the room?" "Yukawa..." "Not the slightest clue." "No clue?" "Truly amusing." "It's true." "He just became a assistant professor, and he's young and immature, - but he's pretty good-looking!" "Are you picking up girls for him?" "You're sucking up to him?" "Yeah, that's right!" "Because I want to eventually..." "Here." " Thank you." "No problem." "This is a friend of mine who teaches physics at Teito University." "His name is Yukawa Manabu." "I requested his assistance in solving this unusual case." "Yukawa Manabu?" "Nice to meet you." "I'm the father of Kunihiro, the victim." "This is my daughter, Namie." "Nice to meet you." "Please describe what happened one more time." "On that night..." " Who made this?" "I did." "Impressive." "Yukawa, listen to..." "I can't possibly make something like this." "Actually, " "I made this, too." "Pull it out, - and you can pull things that are far away." "You used a collapsible umbrella to make it." "Also, - a laser pointer here." "I see." "It's convenient when you want your daughter to get something for you." "Exactly." "Well then, please tell us about the incident." "Yukawa." "Did that bother you?" "What?" "Their family member passed away, but they weren't sad at all." "The man who died, Tomonaga Kunihiro... was a hated man." "He was the son of his previous wife." "His previous wife?" "But, they divorced 30 years ago, - and the wife left when he was only one year old." "Then, what about Namie, who lives with him now?" "She's the daughter he had with his second wife." "But, his second wife passed away in a traffic accident." "Tomonaga was bedridden in a stroke afterwards." "Namie is great!" "She always looks after her father!" "But, that was when the son showed up... after 30 years!" "Hey!" "Kunihiro..." "Why are you..." "Mom died." "You remember her, right?" "The woman you abandoned." "You have a duty to provide for me." "You're my father." "I guess I'll live in that cottage!" "Dad..." "This is great!" "Kunihiro blamed his irresponsible father - for being unable to find a stable job, - then moved into that cottage." "Not only that, he had over 10 million yen in debt." "Stop making excuses!" "From what I hear, Tomonaga sold some land to pay back his son's debt." "He was good for nothing!" "He rode his jet ski everywhere." "Hey!" "That's enough!" "He'd launch fireworks all night!" "He was nothing but trouble to us!" "That's Kunihiro's jet ski." "To be blunt, he was a nuisance to everyone." "There must be many people who are happy to see him dead." "I don't care about who the murder is, - or what the motive was." "I'm only interested in how the murderer vanished from that cottage." "Nothing more." "Excuse me." "What can you catch around here?" "Many kinds of fish." "You can catch Japanese Whiting, - and huge Fueki Sea Breams at night." "Excuse me, - were you fishing on the Saturday night last week?" "Oh, the night when there was a fire at Tomonaga's place?" "I was fishing on the rocky area over there." "Did you see anyone suspicious?" "I was trying to catch something, - and I didn't pay attention." "I see." "Well, the fishing line snapped." "The fishing line snapped?" "How big was the fish?" "I don't know if it was big or not." "But, I've never had Number 12 fishing line snap on me before." "I saw smoke coming out of the cottage right after." "The finishing line snapped..." "The police brought a physicist." "A physicist?" "Yes." "Assistance with the investigation." "Why would anyone care if he's dead?" "But..." "You should at least pretend to mourn his death for now." "We should refrain from seeing each other for a while." "Yes, okay." "Please, I'm begging you!" "Please spend some time with Professor Yukawa!" "Get away from us!" "Professor Yukawa..." "It seems Kuribayashi can't actually pick up girls." "Even though there's heaps of women around." "Too bad." "Excuse me!" "Wait!" "Wait!" "I'm not asking you to play with me!" "What are you doing?" "Please!" "Play with our professor for a while!" "I promised to pick up some girls for him!" "But, they're not taking you seriously at all." "Yes." "Huh?" "You're so pathetic." "Shionoya?" "!" "Why are you here?" "I wanted to help solve the murder case, too." "Huh?" "But, Kuribayashi, - you don't have to throw away your pride just because you're his assistant." "You don't get it, do you?" "This is a summer beach!" "We're all here to throw away our pride!" "You're not making any sense." "Professor Yukawa?" "Kusanagi's there, too." "Whoa, he's good!" "Wow!" "The game's over." "He's our professor." "Professor!" "Professor Yukawa!" "Were you a beach volleyball player, Professor Yukawa?" "He was cool, huh?" "Have some edamame beans, Professor." " Thanks." "You're so cool!" "It was my first time playing beach volleyball." "You're that good on your first time?" "I stuck out my hand toward the trajectory of the ball, - and calculated repellent force to receive." "I was able to somewhat control the ball." "He can!" "Wow!" "Amazing!" "So, you used theories of elasticity and potential energy in physics!" "That's right." "How were his spikes?" "It was great!" "The key to spiking is how well you match the trajectory of the ball, - and the apex of the jump." "Cool!" "The gravitational..." "A toast to the professor's spike!" "Cheers!" "Cheers." "I can't react like the others!" "How would you read your opponent's movement?" "He always used that personality of his to charm girls." "But, he goes on and on, so it never gets anywhere." "Is that right?" "What about you?" "Are you interested in the murder case?" "Yes." "Really interested." "Why would that interest a physics student?" "Professor Yukawa used to be a physics student too, right?" "I couldn't stop thinking about Professor Yukawa solving murder cases." "Could you tell me what happened?" "Please?" "Well, " "I was suspected of murder when I was a sophomore." "You were suspected of murder?" "!" "Yeah." "This is Kusanagi." "I thought it was Grand Condo East Hongo, - not Green Condo East Hongo?" "Oh." "No problem." "Okay." "Sorry!" "Hey, I almost dropped it!" "Ms. Ejima?" "Gimme a break..." "Ms. Ejima?" "Doremi Pizza here." "Ms. Ejima?" "Ms. Ejima!" "Huh?" "The police thought she'd been murdered." "Because..." "Do you recognize this pot?" "It was lying in her room." "There was blood right here." "The blood of Ejima Chinatsu, who passed away." "We believe she was beaten with this before she fell from the balcony." "Huh?" "The police suspected me." "When the woman named Ejima Chinatsu fell from the balcony, " "I was the only one in her room." "Hold on, " "I haven't done anything." "I mean..." "It's him!" "I ran into a guy outside the condo!" "It stopped raining long time ago, but he used an umbrella." "It seemed like he was in a hurry!" "What about him?" "The smell." "He smelled like the same perfume I smelled in her room." "That man was in the room!" "I'm certain of it." "The man was called Okazaki, - a furniture salesman." "The police interrogated him, - and he admitted to going into that room." "But, the woman fell after the man left, right?" "There's an inconsistency with time." "Yes." "Okazaki claimed he only went there to hand over a sofa catalog." "The police thought he was innocent from the start, - so they didn't inquire further." "They only suspected you." "It was almost game over for me." "I had nothing to prove my innocence." "So, what did you do?" "I sought help from him, - who was in my badminton club." "The space shuttle had negative acceleration at the time." "You're so smart, Professor Yukawa!" "Using the same logic..." "Yukawa." "Yukawa!" "Hey, Yukawa." "Sorry to bother you, but do you have time to talk?" "I can't tell if it's bothersome until I hear what you have to say." "Actually, I have a favor to ask of you." "Can you save me?" "In other words, I want you to prove that I didn't push her." "Why me?" "You're the smartest person I know." "I specialize in physics, though." "A murder case is..." "How about this, then?" "Is there a way to make someone fall without making direct contact?" "I want you to scientifically prove this." "Are you saying the murderer set up some kind of a trick?" "For example, he might have used a candle." "A candle?" "Hypothetically, - he could've tied the body with a rope, - then hanged her from the balcony." "The other end of the rope would be tied to something, - and set up a lit candle beside it." "When the candle gets shorter, it burns and snaps the rope." "Yeah." "That way, it would be possible - to make the woman fall after he left the room." "Would such a setup work?" "Why don't you try?" "If you have an idea, then you should try it." "Getting results from an experiment - is far more meaningful than asking for my advice." "But, someone like me can't..." "I don't think there's any value in an experiment like that..." "There's no such thing as an experiment without value, " "Kusanagi." "Yukawa, your last report was pretty good." "Thank you." "Still... they call you a genius, - but don't be conceited." "A lot of young people let it go to their heads and end up nowhere." "Who's that?" "Kuribayashi, the assistant." "I might become assistant professor next year." "Yukawa, you should attend my seminars." "I'll think about it." "Oh, you're having the A-Set lunch?" "I'm having the B-Set, it costs 80 yen more." "Work hard to become someone like me." "Experiments, huh?" "Did you try the experiments?" "There was an empty room in that condo." "It had identical layout as the scene of crime, - so I asked the superintendent to use the room." "All right." "I did it!" "Yukawa..." "It looks like the experiment was a success." "But, it takes a long time for the candle to burn down." "Did you see a lit candle like this on the day you went to the room?" "Maybe he used a short candle from the start?" "You're trying to say it was already burnt out by the time you got there?" "Just to make sure, - was there a plastic rope tied to a pillar in the room?" "You're a cruel guy." "This would never have worked!" "You already knew that when I explained it to you!" "You could've told me - that there was no meaning to this experiment!" "I only pointed out a problem, I didn't say it was meaningless." "Like I said, there's no such thing as an experiment without value." "But..." "Try it first." "It's an important attitude to have." "You can only make new discoveries through actual experiments." "If you didn't try an experiment, I wouldn't have tried to help you." "You'll help me?" "This room's layout is identical to the woman's room?" "Yes." "A way to make someone fall - without making direct contact." "Yeah." "Yukawa?" "I haven't the slightest clue." "Huh?" "Interesting." "However, there must be a reason for every phenomenon." "Your idea wasn't fundamentally bad." "The problem would be solved if there was a rope - that disappeared after the body fell." "A rope that disappeared?" "Hey, Yukawa?" "I see." "Did you figure it out?" "It works." "Tell me." " No." "It's still in the hypothesis stage." "Hypotheses must be proven first." "So, did Professor Yukawa prove it?" "He sent me a videotape." "A videotape?" "He told me to show it to the police." "I am Yukawa Manabu from Teito University." "I would like to perform an experiment." "First, add a small amount of hot water in this pot." "Then heat it." "What is this?" "He'll prove a way to - make someone fall without making direct contact." "What?" "It's starting to evaporate." "When you can see plenty of steam, cover the pot with the lid." "Then immediately cool it down." "Next, use ice... to block the vent hole." "Then... the lid will stick to the pot." "This phenomenon is caused by cooling the pot, - which turned steam inside back into water." "Due to low pressure inside, - atmospheric pressure keeps them together." "It has nothing to do with the murder." "Please watch the rest." "Kusanagi, we want to ask you a few more questions..." "Just watch!" "This sand bag weighs about 40 kg." "It's about the same weight as the late Ms. Ejima." "When Ms. Ejima passed away, she was wearing a T-shirt, - so I wrapped this sand bag in one as well." "Next..." "Pull out vacuum cleaner's power cord." "Then put the cord... through the T-shirt's sleeve." "After that, - carry the sand bag out " "to the balcony." "The vacuum cleaner gets stuck - against the glass door as a result." "One end of the cord is now fixed in position." "Now, - let's hang the body first." "This is where the pot comes in." "Now we're ready." "Please watch what happens." "The first change will be on the ice on the pot's vent hole." "Obviously, it will melt." "Once melted, air will enter." "When air enters, - the lid, kept down by the atmospheric pressure, will come off." "The experiment is now complete." "Thank you, Mr. Kuribayashi." "You can turn the camera off." "Yukawa, don't drag me along with your games." "I'll never help you again." "It's just this one time." "Do you want to interrogate me now?" "You're still trying to prove the Four Color Problem?" "I might not solve it even if I worked on it for rest of my life." "This is it for today." "I have to get to my class." "See you, Yukawa." "See you next week." "Yukawa!" "The furniture salesman, Okazaki, hit the woman in the head with a pot." "He was having an affair with Ms. Ejima." "He tried to break up with her, and it turned into a fight." "He bumped into me right after that happened." "That man is the murderer?" "Actually, he didn't kill her." "She fell from the balcony, - because she committed suicide from the shock of being abandoned." "As I thought." "I suspected her death was suicide from the start." "Huh?" "It took me over ten times before I succeeded with the experiment." "It wouldn't work with that method in reality." "I just wanted to prove - that it was possible to make someone fall - without making direct contact." "But, the police figured out the truth - and reinvestigated the case from - another perspective after watching that video." "You saved me." "Thank you, Yukawa." "Well then, " "I have to attend a lecture about quantum information theory." "Actually, that was when " "I thought it'd be a waste for Yukawa to become a physicist." "So, that's what happened." "Let's go home." "I have a lecture tomorrow morning." "Let's go, Kuribayashi." " Hold on!" "We still haven't solved the mystery yet." "Yeah!" "I'm already satisfied." "I just got here, though!" "You should enjoy your stay, then." "She came because she was interested in the murder case." "I came to help with the investigation." "Well, the scene of crime is that way." "Good luck." "Let's go home, Kuribayashi." "No, stay!" "Wait..." "I brought amazing bikinis!" "It's way more revealing than ones these girls are wearing right now." "If Professor Yukawa is staying, " "I'd probably wear it..." "Shionoya." "Let's go to the scene of crime!" "I like bikinis." "It's wonderful to see on the beach." "If all female students attended my lecture in bikinis, - that would make me very happy." "However, someone serious like you, - wearing super-revealing bikinis..." "The thought of you standing in the scene of crime makes me..." "I didn't say I'd investigate the crime in a bikini!" "Let's go home, Kuribayashi." "P-Professor Yukawa!" "He might change his mind if you show him your bikinis." "It was a lie." "I didn't bring any bikinis." "I'm going home, too." "I'm not leaving!" "Tomonaga Steel Thank you for making the time to see me." "Could you explain one more time what happened on July 10th?" "President Tomonaga..." "I mean, the former president, was having a drink with us at his home." "Who was with you?" "The former president and his daughter." "He'd already gone to sleep when it happened." "I'll go get some more ice." "Namie had just left us." "We heard a window break first." "The sound of window breaking?" "Use your brain..." "F-Fire?" "!" "Were you aware that Tomonaga's son, Kunihiro, was living in the cottage?" "We knew." "But, the fire wasn't what killed him, right?" "He was stabbed with a knife, right?" "The sound of glass breaking must have been - when he was fighting off the murderer!" "The murderer set the place on fire afterwards." "That's pretty cruel." "You don't remember seeing the murderer, after all?" "Like someone running?" "We didn't see anything like that." "The door and windows were locked from inside, right?" "Where did the murderer disappear to?" "That's the mystery." "What does this company do?" "We process metals by melding and thermal spraying." "Thermal spraying?" "A technique used to strengthen industrial products - by coating their surfaces." "Yes." "We handle products such as industrial pumps and aircraft engines." "We also handle specialized metal processing such as explosive forming." "Your company engages in highly technical work." "Former President Tomonaga built up this company from a small workshop." "Actually, he only graduated from middle school." "But, he studied metal processing really hard, - and grew the company to what it is today." "Wonderful." "Professor Yukawa, may I join you for lunch?" "Go ahead." "Ah, B-Set!" "Impressive!" "I'm having the A-Set lunch." "Why don't you get the B-Set, too?" "Oh, no!" "How can an assistant like me have the same lunch as an associate professor?" "Are you thinking about that murder case again?" "It is impossible for the murderer to - leave the room and lock the keys from inside." "I keep telling you this, but..." "It is also impossible to lock the keys from inside, then leave." "If the faculty board gets their eyes on you..." "In other words, the murderer wasn't there from the start." "Wasn't there?" "!" " No one was in the cottage where he died." "But, the victim was stabbed to death!" "He was stabbed to death..." "Right?" " Actually, "stabbed to death" is not entirely true." "The victim was dead." "And the body had a stab wound." "That would be the accurate description." "Well, yes, but..." "Still..." "Yukawa!" "We discovered something interesting." "Something interesting?" "It's about Tomonaga and his first wife..." "Kunihiro's mother." "Their divorce wasn't approved in court." "So he and his second wife weren't legally married." "More importantly, Namie!" "She was the second wife's daughter with another man." "She's not related to Tomonaga, nor adopted." "She's still just an outsider." "Do you know what this means?" "No." "In other words, - the inheritance was supposed to go to Kunihiro." "And now that he's dead, it's all Namie's." "Namie had the motive for murder." "I'm not interested." "Come on..." " As I said before, " "I don't care who the murderer is, nor the motive." "Yukawa!" "Sheesh... people sure don't change." "Dad, here's your lunch." "Thank you." "It's going to be cooler today." "Should we go out for a walk later?" "It hasn't been long since Kunihiro died." "If the neighbors see us talking a stroll, - they'd disapprove." "You're right." "Namie..." "Never mind, I'll eat." "Go ahead." "Yes?" "I'm Shionoya Akari, " "I'm a researcher in Professor Yukawa's lab at Teito University." "Would you let me take a look at the scene of crime?" "Huh?" "Wow!" "Whoa!" "I can't tell what was what." "Stabbing without making direct contact." "What do you mean by that?" "What?" " Without making direct contact?" "Judging from witness accounts and description of the case, " "I don't think the murderer was in the room from the start." "He was somewhere else and caused a stab wound on Kunihiro somehow." "Did you come up with that idea?" "Yes!" "I wanted to use my knowledge to do something useful!" "Professor Yukawa's students certainly have open minds." "Namie" "Hello?" "A student, by herself?" "She seemed like a model student." "Yukawa!" "He stepped out." "Where is he?" "Dunno." "Another discovery?" "Yes." "Well, I'm sure Yukawa wouldn't be interested, though." "He has zero interest in personal relationships." "Pretty common amid those who are known as geniuses." "On the other hand, I'm a scientist who understands feelings." "Kurita, was it?" " It's Kuribayashi." "Oh, sorry." "You're a physicist, too, right?" "I was known as a prodigy when I was little." "I'll listen to your new discovery." "I may be of help." "Actually, that Namie girl has a boyfriend." "Oh?" "!" "Konno..." "Konno Sousuke, 30 years old." "A vacation planner." "A vacation planner?" "There's talks of marriage between those two, - but Kunihiro's existence was probably in the way." "He was in the way!" "They wanted to get rid of him!" "She had an alibi, - but murder is possible if Konno was an accomplice." "I see!" "What do you think?" "Huh?" " Can you solve the mystery?" "The mystery?" " How did the murderer kill Kunihiro?" "I haven't the slightest clue." "Wait, Kusanagi." "You regret telling me, don't you?" "No, I didn't." " Yeah, you do!" "You think you wasted time talking to an eternal assistant like me!" "No, goodbye." " Come on, that was impossible!" "You can't solve the mystery with that information!" "Don't worry about it." " There's not enough information..." "Yeah, it's me." " New leads?" "Shh!" " Give me some time..." "Shh!" "Got it." "I'll be there right away." "Give me a bit more time to think." "I'm about to figure something out." "Wait, Kusanagi!" "Sorry to disturb you at work." "Actually, there's something I wanted to know in more detail." "Here you go." " Thank you very much." "What did you mean by what you said earlier?" "What I said?" "About wanting to use your knowledge to do something useful?" "Oh." "I... don't really know what I'm studying for." "Huh?" "I've been good at science ever since I was little." "That's why I'm studying physics at the university." "Sounds like a model student, huh?" "Yes." "But, there's not much of a job market for a physics student." "Really?" "Well, jobs requiring that kind of technical knowledge is limited, right?" "My seniors move on to sales or administration for companies - that have nothing to do with physics." "Otherwise, they'd stay in university and continue with research." "In addition, - a girl with a science major gets excluded just for being a girl, - and it's hard to get married." "That's why I'm not really expecting anything like that." "But, I think science has value when it's used to help others." "That's why I was surprised when Mr. Kusanagi visited Professor Yukawa." "The thought that we might solve a murder case - got me all excited!" "Excited..." "Sorry, that's inappropriate." "That's why you came by yourself." "I'm sorry, I'm so inconsiderate." "Shionoya, you're actually really girly, aren't you?" "Huh?" "You should show that off in public!" "This is the first time anyone said something like that to me!" "I think you're really cute." "Thank you." "Namie, are you always at home?" "Yes, my father is here." "What?" "Ever since he was hospitalized after having a stroke, - he hasn't been able to move easily." "He needs me with him." "I see." "But, now it's part of my life." "Um..." "Can I take a look beyond the cottage?" "Professor Yukawa always tells me, - that I should change my perspective when I can't get an answer." "Something that seems unrelated - might turn out to be a hint." "You like Professor Yukawa?" "N-No, I don't!" "Why would you say that?" "I respect Professor Yukawa, - but it's not anything like that!" "He's Galileo, the weirdo, you know?" "Don't say something weird like that!" "Oh?" "I'm sorry." "Go ahead and look around." "Why would Namie say something like that?" "Did I say something strange?" "A glass shard?" "Shionoya." "Shionoya." "Are you all right?" "Professor Yukawa!" "Why am I..." "Don't worry." "It's this." "The odds of something like this hitting you is incredibly low." "It's amazing, in a sense." "Amazing?" "Are you all right?" "Ow..." "I'm sorry, I should've went with you." "No, it's my fault for wandering off on my own." "Shionoya." "You said you found something glittering." "I think it was a tiny glass shard." "A glass shard?" "A fire." "A broken window." "What about the window?" "But, before that..." "We heard a window break first." "The sound of window breaking?" "Professor Yukawa?" "The window broke before the fire." "I wonder what they're investigating now." "What are you looking for, Professor?" "The Space Debris Model is - an application of explosive forming in the field of space exploration." "The former president, Tomonaga, was developing that?" "Yes, he got the attention of the entire world for the quality of his work." "Now, we even provide the technology to NASA." "NASA?" "The president was known as the Magician of Metals." "Magician of Metals." "This is where I collapsed." "Well, the fishing line snapped." "Known as the Magician of Metals." "A glass shard?" "Did you figure something out, Professor Yukawa?" "No." "It's still in the hypothesis stage." "Hypotheses must be proven first." "Then hurry and prove it!" "Just wait." "This is it." "Impact Experiment Building" "Kobuchizawa, you recharged the batteries, right?" "Yes, I did." "Huh?" "Oh..." "What's this?" "We've recreated the scene of crime." "What's about to happen?" "I don't know, either." "Professor, we're ready." "Let us begin." "Take a look at this." "This is a stainless metal sheet." "About one millimeter thick." "However, it's uneven, and has thin and thick parts." "What are you trying to do?" "Isn't it obvious?" "I'm going to recreate the method used to kill Tomonaga Kunihiro." "A recreation?" "Explosives are packed into this case." "Explosives?" "!" "Shut up and listen." "On the other end of the explosives is an ignition device." "An ignition device..." "From here, " "I'll be using a case that has one of these metal sheets welded in." "Furthermore, this case will be placed in a silencer made of maraging steel." "That is the victim." "In front of him is the window." "We'll place this here." "A similar bookshelf was in the cottage." "The murderer set up a similar device there, too." "The murderer did?" "Yukawa, can you explain it in simpler way?" "Take a look at this, then." "Usually, when you ignite an explosive, - its force propagates rapidly." "In all directions." "However, if you use " "Explosive A, " "Explosive B, - and similar explosives with different propagation velocity, " "the explosive energy - focuses like this, " "and melt the metal sheet into liquid, - turning it into a high velocity projectile." "In other words, - at the moment of explosion, - the metal sheet will, as you see, - turn into a shape with sharp tip - and fly out." "I have no idea what's going on." "I understand the logic, but I don't know how it relates to the case." "This is what happened." "Go ahead, Kuribayashi." "Yes, sir." "Three seconds to ignition." "Two." "One." "Zero." "Ignition!" "Complete." "Professor Yukawa!" "It looks like a stab wound." "Professor." "This impaled him." "That?" "!" "How did it change shape?" "Kobuchizawa, the video." "What?" "Here goes." "This is amazing!" "Professor Yukawa..." "Now my hypothesis is proven." "The murderer did the same thing." "Who could do that?" ""Analysis of Liquified Metal Behavior Through Explosive Pressure."" "Tomonaga?" "Tomonaga Yukimasa" "It's a research paper published about 20 years ago." "Its content is truly wonderful." "Changing the shape of metal using explosives - was analyzed through an immense amount of experimentation." "The kind of explosives, amount, - properties of the metal, - shape, size..." "Nearly infinite combinations were tested one by one." "In his hands, - any metal can be transformed into the shape he wants." "He was a man known as the Magician of Metals." "Incredible." "He makes us researchers look like amateurs." "A man who only graduated middle school... is capable of this?" "He is an incredibly hard worker." "Yes?" "Is your father home?" "Yes." "What is it?" "The one who murdered your son... was you, " "Mr. Tomonaga." "Do you have proof?" "The proof is - your research paper." "Analysis of Liquified Metal Behavior Through Explosive Pressure" "Mr. Tomonaga, " "I'm about to explain my hypothesis, - but before that, " "I would like to confirm something with Namie." "On the day of the incident, - or the day before, - did you two enter the cottage?" "Please tell us the truth." "We went to get that ship in a bottle." "At that time, - did you leave Mr. Tomonaga alone, even for a while?" "Ship in a bottle?" "There's a cardboard box in the closet." "A ship in a bottle that I made is inside." "Our father's former employees will be here tonight, - and he wants to show it to them." "Then take the whole box." "It takes up so much space." "I don't want him to rough it up." "Go with him." "Okay." "I see." "That's when... you set this up." "While you were alone..." "You set everything up." "What is that?" "It's a remote-controlled device that can stab a person to death." "And on the night of the incident..." "I'll pour you another glass." " No, I've had enough to drink." "I'll retire early tonight." "What?" "You're going to sleep already?" "Can you take care of everything, Namie?" "All right." " But..." "Make yourselves at home." " Yes, sir." "You left the room right before the incident." "And you called Kunihiro." "There was no phone record, - because it was an internal phone call." "Internal" "The purpose of the phone call... was to make him stand beside the window." "What do you want?" "And I'm sure you said something like..." "Your jet ski... is about to be stolen by someone." "What?" "!" "When you made sure that the target was in range, - you pressed the remote control's switch." "And in the next moment..." "Ow!" "It snapped?" "Damn it!" "F-Fire?" "!" "F-Fire!" "That is my hypothesis." "Shionoya." "This is the stainless metal sheet - used to prove my hypothesis through experimentation." "And this... is the stainless metal sheet I found at bottom of the sea - about 20 meters out from the coastline." "However, - just because the target got within the weapon's range, - didn't mean it would hit for certain." "You might have failed to achieve your goal if - the setup's angle had been at all altered." "For that reason, - your walking stick played a very important role." "What?" "The extended length of your walking stick is approximately 120 cm." "Almost exactly... the same height as Kunihiro's heart, from the ground." "That's why you modified the walking stick." "And the laser pointer... was your tool for - estimating the stainless metal sheet's trajectory." "Dad." "Is this it?" "Yes, thank you." "Get the hell out if you're done." "Mr. Tomonaga." "Your only mistake... was telling me about that walking stick." "You really - are a genius physicist, " "worthy of the name Galileo." "All my employees combined... wouldn't be a match for you." "Your hypothesis - is perfectly accurate." "Dad..." "What's the matter, Professor Yukawa?" "You solved that case." "It wasn't me." "He... told me on purpose." "What?" "I think... my father wanted someone to know." "That's why, - when he saw Professor Yukawa and his employees, " "he showed them that walking stick." "Pull it out..." "Also, - a laser pointer here." "It's convenient when you want your daughter to get something for you." "Exactly." "Because..." "If it becomes a perfect crime, - he wouldn't get arrested." "I'm sure that - my father - killed him for my sake." "For you?" "With him gone, - he can give his inheritance to me." "Then..." "I can marry him." "If he cares that much about you, - why didn't he adopt you?" "He loved you like you were his own daughter, right?" "If we become true family, - taking care of him... would become my duty." "Hold that side." "Ready..." "Get the chair." "Good." "Even though " "I didn't mind it at all!" "I'm... his daughter, after all." "My father thought... if he committed a serious crime and went to prison, " "I would be free." "I... was manipulated by Tomonaga." "Tomonaga Metal Impact Development Team Tomonaga Yukimasa" "The record of this conversation will be used as evidence - for further investigation and in the trial." "So, please answer carefully." "Please take a good care of my father." "Namie!" "Sou!" "We can't leave him all alone." "I'll wait with you, - so let's wait for him to be free." "Sou..." "Namie." "We'll stand in the trial, - and plead extenuating circumstances to reduce the sentence." "So that the president can return to you, even if it's just a day sooner." "Please tell the president, - that we'll all take care of him together." "Thank you." "Thank you so much!" "You have admitted to committing murder." "Are there any errors with this statement?" "Professor Yukawa!" "I decided what to do with my life." "I'll become a police officer." "I'll join the forensic science laboratory team - and use the knowledge I gained from you to help solve crimes." "I see." "Not a bad decision." "Before that, " "I wanted to change my personality." "I'm done with being a serious girl!" "I'll fall in love, and wear super revealing bikinis - for a fulfilling university life!" "Wait a second." "How would love and bikinis help you get a fulfilling university life?" "Oh, bikinis are just a bonus." "No, I'm curious about the love part." "Bikinis can be measured by their area." "However, love is completely uncertain." "Professor..." "It is impossible to prove that love causes fulfilling university life." "To begin with, what is the measurement of love?" "It is impossible to measure its quality or quantity with certainty..." "Never mind!" "I'll... try to figure that on my own." "Goodbye." "He doesn't get it!" "She doesn't get it." "Professor Yukawa and Kusanagi went on to solve many difficult cases." "Always reluctantly." "However, how does he really feel?" "My hypothesis is that - the first Tomonaga incident, - had a great impact on Professor Yukawa." "In other words, he must have realized - that feelings are also part of science." "Eventually, Kusanagi was promoted to the police headquarters, - and his replacement was Utsumi Kaoru." "What kind of cases did Professor Yukawa and Utsumi Kaoru go on to solve?" "I'm sure you already know."