Conan: Live in the Maori Detective Agency at the beginning

"What? Don't you know? The original design of this kind of bicycle will become heavier the more you pedal, slowly increasing the burden on the athlete, thus achieving the meaning of exercise." Sato Miwako explained to Shiratori Rensaburo.

Shiratori Renzaburo already felt something was wrong, his reasoning was being overturned step by step.

"Since the victim is used to it, she won't notice it," Conan continued.

Keizao Masuo opened his eyes wide, feeling more and more uneasy.

"The cabinet will also fall down. Wasn't it still fine when you came in?"

"Instead of designing such a complicated trap, it would be better to ambush him inside the cabinet and kill him directly." Shiratori Renzaburo said with his hands spread out.

"Actually what you said is correct, which means..." Conan was about to reveal the real murderer.

"In other words, the murderer is the only person present who had both the opportunity and time to lift the cabinet, and who is familiar with the structure of the house and the victim's daily routine - Mr. Masuo, only you could have done all this!" Takagi Shigeru interrupted as if he had suddenly become enlightened, and said, pointing at Masuo Keizao.

"Huh?!" Conan, who was under the table, was suddenly shocked. He didn't expect that Takagi Shigeru could also deduce it.

Xingchen jumped down from the cabinet and looked at Sato Miwako, then at Takagi Wataru. Could this be the power of secret love?

In an instant, the three detectives looked at Keizo Masuo, and Keizo Masuo felt a great deal of pressure.

"What are you talking about?" When they didn't produce any evidence, Keizao Masuo still denied it.

"No wonder you made the call from the police station, because you know very well that your wife will ride a bicycle at two o'clock in the afternoon." Sato Miwako looked at Masuo Keizo and said.

"That's right, Mr. Masuo, you can roughly estimate the time when the stabbing happened, then call the police station and let her be killed during the call, and you will have a perfect alibi."

"You gave the phone to Officer Takagi so that he could prove that the person on the other end of the line was your wife."

"As soon as you entered the building, you asked the police to go to the second floor to look for it. This was so that you could take advantage of the police's search on the second floor to enter this room and lift up the cabinet." Conan stated the facts.

"But, what if the person who came in first was a detective?" Keizao Masuo continued to argue.

"Then the books all over the floor and the fallen cabinet will also be considered to have fallen to the ground during a fight with the murderer. And the book covers on this bookshelf are all dark red, so even if they are stained with blood, it would be difficult to see." Conan continued to explain. This person will not cry until he dies.

"Is that really the case, Mr. Masuo?" Shiratori Jinzaburo looked at Masuo Keizau seriously.

"Then what about the fishing line? According to what you said, the fishing line was left on the axle. If the detective saw the fishing line as soon as he came in, wouldn't everything be exposed?"

"And you don't have any evidence to prove that this is the mechanism I made." Keizao Masuo's face was pale and he made his last struggle.

"Really? Uncle, why is there a wound on your hand?" Xingchen pointed at Masuo Keizao's hand and continued to shout, "It seems like you put your handkerchief in your pocket and got stabbed just now."

Keizao Masuo covered his fingers and took a step back with a panicked look.

"Then Mr. Masuio, could you please take the things out of your pocket?" Sato Miwako stepped forward and said.

"Inside his pockets are probably the tape and thumbtacks that were originally stuck to the cabinet."

"The neat bloodstains on it are caused by the tape. Most of the bloodstains are probably on the tape." Shiratori Renzaburo said, looking at the bloodstains on the cabinet.

"Okay, please take the things in your pocket out." Shiratori Jinzaburo looked at Masuo Keizao seriously and said.

"As expected of the famous detective Maori Kogoro, I admit defeat this time. When I propped up the bookshelf, I pulled it out for the sake of caution."

"Now it has become my absolute evidence." Keizao Masuo shook his head, took out the thing and said.

"But why did you kill your wife?" asked Takagi Wataru.

Masuo Keizao lowered his head and said, "Insurance money, I bought a high amount of insurance for my wife, so..."

"Really? You still want to protect your friend, right? The reason is that your wife found out that your friend is the robber."

"What?!" Shiratori Renzaburo and Takagi Wataru were a little surprised.

"Actually, he just teamed up with his friends to rob his own bank, right, Mr. Masuo."

"The mastermind is Mr. Masuo. With him being the head of a bank to plan it, the plan is of course foolproof." Conan continued after exposing the truth.

"Unfortunately, during the hostage-taking at the bank, your wife heard the voices and knew that the robbers were friends of you and your wife."

"You were afraid she would tell the police, so you killed her."

"Is that so, Mr. Masuo?" Conan glanced at Keizao Masuo and said.

"..." Keizao Masuo knelt on the ground speechlessly.

"The question is why he does this." Takagi Shigeru asked puzzledly.

"Isn't there a photo album with a lot of circles drawn on it? I think his wife must want to hand it over to the police."

"It is to prove who the robbers are."

"Besides, you see Xiaochen has had the photo album open for a long time." Sato Miwako said with a smile.

Xingchen turned into a human-shaped bookshelf carrying the photo album. Seeing this, he sighed. It seemed that the matter had been resolved.

In fact, when Xingchen was halfway through the reasoning, he remembered that this was the episode that was played over and over again on TV a long time ago.

It was too late to remember it, Xingchen had figured it out himself. After all, it was a proof question.

Finally, Keizao Masuo was taken back to the police station by Miwako Sato.

Shiratori Jinzaburo felt the gap between himself and the famous detective. He sighed, left the room, and then asked his men to conduct a final search of the room.

Maori Kogoro was awakened by Xingchen, and shook his head in disappointment when he heard that Sato Miwako had left, and he didn't even get a business card. Although he learned from Takagi Shigeru that he had solved another case.

But he just couldn't be happy, and finally left by himself.

Only Xingchen and Conan were left.

Shigeru Takagi was responsible for sending them back to the Metropolitan Police Department to continue recording their statements.

Xingchen, who was sitting in the passenger seat, looked at Takagi Wataru and suddenly said, "By the way, Officer Takagi, do you like Officer Sato?"

"Eh? Why, why do you say that?" Takagi Shigeru asked with some surprise.

"Because Officer Takagi looks at Officer Sato very differently." Xingchen said with a smile.

"You guys discovered all this." Takagi Shigeru smiled awkwardly.

"Didn't you say before that Officer Sato has someone he likes in the police station? Could it be you, Officer Takagi?" Xingchen continued teasing.

"If you like someone, you should express it bravely, Officer Takagi," Xingchen encouraged.

"So that's how it is, Yoshi." Takagi Shigeru looked towards the front of the car seriously.

He seemed to begin fantasizing about his future happy life after marriage.