The two went to check the place where the food delivery boats were kept. Among the five delivery boats, the largest one indeed had traces of spilled fugu caviar.
Afterwards, Chi Feichi went with Conan to Room 3 where the three people had eaten.
"A pair of chopsticks' paper wrapper is missing," Chi Feichi said.
Conan squatted in front of the window, a smile appearing on his lips. "There are water stains on the window, and marks of thumbtacks on the window frame... I already know the trick he used to create his alibi!"
Chi Feichi frowned, looking at the ice cubes on the table. "Judging from the shape and position of this water stain, it doesn't look like it was accidentally splashed. He probably used ice cubes and the paper wrapper of the chopsticks..."
"Yeah, first attach a rubber band to the window frame on the other side, then wrap the paper wrapper around it, fix the two ends to the other window frame and the wall, and place an ice cube in the middle," Conan continued. "After the ice cube melts, the paper wrapper gets wet and breaks from the middle. The tightened rubber band on the other side contracts, pulling the window shut."
Chi Feichi: "..."
Alright, for now, he hadn't thought of the rubber band, only reconstructing the situation on the ice cube side.
For this kind of petty trick, Conan indeed sees things a bit clearer.
"Afterwards, just retrieve the rubber band and tacks, throw the paper wrapper into the waterway outside the window, and it can be covered up," Conan turned to look at Chi Feichi. "As for the evidence..."
"Still on him." Chi Feichi knew exactly where the evidence was. "He used the food delivery boat to travel to and from the crime scene. There were traces of spilled fugu caviar on the boat. The deceased hadn't been served food before leaving, so the caviar on the deceased's right thumb must have rubbed off from him during the attack. In other words, when he crawled into the boat, he must have gotten fugu caviar on himself. The location should be on his left arm, and it will also have the deceased's fingerprints. We didn't see it just now, probably because he only wore a shirt while committing the crime and put on his jacket afterwards to cover it up."
"Yeah, the ironclad evidence he can't escape is already there!" Conan nodded. When he went out, he saw Professor Iwama specifically wearing a jacket. Chi Feichi didn't see it but could deduce it, which was within his expectations.
In the lobby, Takagi Wataru had just finished investigating the statements of guests in other rooms. No one saw any suspicious characters coming or going.
Megure Juzo asked Professor Iwama where he was at that time again.
"I stayed in Room 3 the whole time," Professor Iwama said without changing his expression.
"That's right," Mouri Kogoro naturally provided information for the murderer's alibi. "I remember Professor Iwama shouted at that time, right?"
"Correct, correct," Professor Iwama hurriedly said. "I accidentally knocked over a plate on the table while looking for my contact lens."
"After that, I also saw the window of Room 3 close," Mouri Kogoro added. "This proves you weren't at the murder scene!"
Walking over with Conan, Chi Feichi saw this scene. Unknowingly, he thought of a certain husky that could reach an agreement with criminals... No, no, stop it. Mouri Kogoro was his teacher after all; he couldn't think like that.
Megure Juzo started asking Ryuichi Arai again. "Mr. Arai, you seem to have returned to the restaurant only after the murder occurred, right? Where did you go around 7:50 PM?"
"This... that young man and that little boy just asked me..." Ryuichi Arai subconsciously looked at Chi Feichi.
Megure Juzo didn't rush to confirm but turned to Chi Feichi. "Oh! Brother Chi, do you have a clue?"
Chi Feichi nodded. "But I think Teacher Mouri already knows who the murderer is."
"Teacher?" Megure Juzo looked at Mouri Kogoro in confusion.
"This..." Mouri Kogoro sweated profusely. He knew who the murderer was? Since when?
While everyone's attention shifted to Mouri Kogoro, Chi Feichi quickly picked up Conan, opened Conan's watch stun gun, aimed at Mouri Kogoro, shot a needle, and put Conan down.
The whole action was done in one go, extremely fast.
Conan was completely stunned: "..."
This guy Chi Feichi... indeed guessed long ago that he was the one helping Uncle Mouri with deductions!
He thought Chi Feichi was so active this time because he was interested in presenting the deduction, but unexpectedly, he still had to do it.
Just to avoid giving a statement, is it necessary...
"Brother Mouri, do you already know who the murderer is?" Megure Juzo was still pressing.
"Ah..." Mouri Kogoro, hit by the anesthesia needle, danced clumsily.
Conan quickly ran over to pretend to support him, stuck the voice-changing bow tie on Mouri Kogoro, hid aside, and spoke into the bow tie. "Of course, Inspector Megure, I have seen through the murderer's trick!"
Chi Feichi had returned to Soma Taku's side, quietly acting as a spectator.
Wanting to know the truth was one thing; wanting to deduce was another. Anyway, he didn't want to explain the deduction to the police again.
Soma Taku stared intently at the legendary "Sleeping Kogoro," his eyes full of amazement. After hearing Mouri Kogoro point out that the murderer was Professor Iwama, he sweated even more internally.
Earlier, Mr. Mouri said Professor Iwama had an alibi, looking like 'I believe you are innocent'. A moment later, he directly overturned the alibi, pointed out he was the murderer, and stated the evidence.
Playing with people? This is too black-bellied (scheming)!
And he actually hadn't realized Mouri Kogoro was acting before; his acting skills were also strong.
As expected of someone who dared to be Chi Feichi's master. Only with such deep scheming could he suppress Chi Feichi, right?
After the ironclad evidence was stated, Professor Iwama also performed the classic daily kneel, slumping to the ground. "Because Kaneda found out that I had previously published a student's paper under my name, he threatened me. If I didn't want the matter exposed, I had to recommend him when selecting associate professors... Later, he escalated and blackmailed me for 50 million yen. I couldn't take it anymore!"
Chi Feichi looked at Soma Taku thoughtfully.
Soma Taku: "..."
Indeed, there are no walls in the world that don't let wind through. Even if both parties were willing and wouldn't speak out, as long as someone heard rumors, it could become leverage in someone else's hands.
If he were threatened, he really wouldn't know what to do...
Seeing that his part was done, Conan leaned over to Chi Feichi. Noticing Soma Taku's ugly expression, he thought Soma Taku, as a professor, couldn't stand it. After all, he had heard a bit about the old man's pure reputation. But that didn't stop him from teasing. He whispered, "Brother Chi, inviting your own professor to eat at such a high-end Japanese restaurant, you wouldn't be trying to get the professor to help you cheat, right? Like being a bit lenient during the review..."
Soma Taku's heart tightened. Although it wasn't Chi Feichi who invited him but he who invited Chi Feichi, it could still be considered trying to get Chi Feichi to cheat. And it wasn't as simple as being lenient during the review.
The good old man felt guilty.
Chi Feichi calmly raised his fist and looked at Conan. "Do you know what the master-apprentice tradition is?"
Conan choked, giving Chi Feichi half-moon eyes. Only knows how to bully him now that he's a child and can't beat him... Uh, seemingly even if he returned to his original body, he couldn't beat Chi Feichi. "I was joking. I heard from Haibara that your level doesn't need cheating at all. By the way, when are you going to the hospital for your re-examination?"
"Why do you care about this?" Chi Feichi asked back.
"I want to go see," Conan paused. "Aoyama Fourth Hospital, I haven't seen what it looks like yet."
"Incidentally treat your split personality?" Chi Feichi asked. Conan wouldn't have acted so much that he really thinks he has a split personality, right?
Conan: "..."
Treat what!
He was worried about Chi Feichi's condition and wanted to hear what the doctor said, okay?
Soma Taku couldn't help but steal a glance at Conan. He originally intended to talk to the awakened Mouri Kogoro but silently stopped in his tracks.
No wonder he felt the tone of this child was strange just now; turns out he's another mental patient.
He heard this child was boarding at Mouri Kogoro's house.
Look at these three: a deeply scheming black-bellied famous detective, a snake-spirit-illness (insane/eccentric) disciple with oppressive aura, and a snake-spirit-illness child with a precocious tone...
He didn't fit in with them. Better stay away from Mouri Kogoro.