"Hey? Who is this little devil?" Matsuda reached out and pushed Hattori's forehead, allowing this passionate young man to stay away from him. Although this was Hattori's first appearance, Matsuda was still more interested in the coming Shinichi Kudo.

"His name is Hattori Heiji, and he is a crazy boy who calls himself a detective." Kogoro felt happy from his heart when he saw Hattori being ignored by Matsuda.[]

"Hatsuke Heiji?" Meguri said in two words: "Ah! It turns out it's you! Hattori Heizo, the head of the Osaka Police Headquarters, is really in high school!?"

"The son of the head of the Osaka Police Headquarters!" Matsuda scratched his cheek: "Ahha~~ It turns out that he is the second generation of officials, and that little ghost named Kudo is the second generation of rich people. It seems that only such rich men who don't have to worry about food and clothing will play a mystery game."

"Reasoning is not a game!!" Conan and Hattori were in a row and jointly fought against the evil class enemies. After the two of them finished speaking together, they looked at each other in surprise.

Seeing that Matsuda had a tendency to quarrel with the little detectives, Megu stood behind Matsuda and coughed a few deeper. Matsuda, who was about to further discuss in-depth with Hattori Conan, suddenly understood his position.

"I just looked around in this room, ahem." Matsuda became very serious: "All the windows are locked from the inside. The only exit is the door. The murderer is most likely the person who can access the keys of this room in this home."

Well, Megu nodded. At the critical moment, Brother Matsuda was indeed reliable, it was his temperament. He sighed secretly and Megu asked the deceased's wife Koe Tsujimura: "Madam Tsujimura, how many keys are there in this room?"

Koe Tsujimura was the one who invited Kogoro to their house from the Maori Detective Office and first found her husband's body. When Mrs. Tsujimura heard Megumi's question, she reached into her bag and said, "There are two keys in the study room, one for me." Mrs. Tsujimura took out the key and continued, "The other one for my husband."

"My husband?" Megu couldn't believe it.

"That's right." Mrs. Tsujimura said: "My husband usually puts the keys in his pants' pocket."

Memu walked to the deceased with a serious face and reached out to his pants. When the deceased's pants pocket was turned out, a key slid out from his inner pocket.

"How is that possible!" Meguri and Hattori Conan were shocked, as if he had seen something he shouldn't have seen. Well, or rather, the key shouldn't have appeared there.

"What's wrong?" Kogoro, who realized it later, did not understand the seriousness of the matter.

"Don't you understand the situation yet?" Hattori said: "When we came in, the door was locked, so the murderer left after the door was locked. There were only two keys in this room, one was in the hands of Mrs. Tsujimura who came in with us, and the other was placed in the double pockets of Mr. Tsujimura's pants. In this way, a secret room was formed, which was a secret room murder case."

"Murder case in the secret room!?" Everyone present was surprised. Matsuda squatted down and picked up the key that fell from the deceased, looked it carefully, and showed a mysterious smile.

A murder case in a secret room cannot be committed? As long as the person at this family has the opportunity to get in touch with these two keys, it is not too difficult to secretly get one. This kind of key is not a special key that cannot be copied. Why is no one thinking about it in this regard?

Matsuda was very confused. Although he remembered vaguely that this incident in the animation was classified as a secret room murder, he still couldn't help but guess. Whether it was the families of the diplomats present, the second-generation rich second-generation detectives, or the adults of the police department who belonged to the big class and did not understand these common people only knew about them, or...

It is still the animation that Japan is too rich, so there are no handicraft technical jobs in the Celestial Empire who are struggling at the grassroots level, who are professions to pick locks. Matsuda, who is suspicious, did not think about it. The biggest incredible thing is that he, an outstanding policeman who should have died three years ago, actually lived to the Conan era of Edogawa.

Just as Matsuda was holding the key, an important evidence, and showed a mysterious smile, he did not notice that everyone in the room was looking at him, thinking that he had seen any clues. The expectant people did not realize that the highly anticipated police officer Matsuda was wandering around, and his thoughts had already flown to the earth of the Celestial Empire.

"What are you doing?" Hattori looked at it for a long time, and saw that Matsuda did not respond. He felt like a fool. He said to Megura in annoyance: "The time of the crime was confirmed from 3:30 to 4:00. Now we should check the absent proof of the person who may commit the crime as soon as possible. This is the most important thing!"

"That's right." Memu smiled apologized, then walked to Matsuda, grabbed the key in Matsuda's hand, and lowered his head: "Brother Matsuda! Find out the truth quickly and suppress this young boy! You can no longer let the people above think that we are all having a good meal."

Furthermore, Matsuda keenly grasped the key points and smiled ambiguously at Memu.

Haha, hum. Memu wiped the sweat from his forehead, no longer as strong as before. Matsuda, you bastard! You still blame you. In the past, every murder incident was handled by Kudo or Maori. The superior turned a blind eye and passed it. Now, with you, a master of reasoning, the media said that we were incompetent, and let those detectives show their attention, it will naturally make the superior unhappy.

Because the popular idol was killed on Christmas last time, although Kudo Shinichi, who solved the case behind it, was hidden from the public, but Megu naturally dared not hide it when he was reporting.

"How did you act like a police department? Let a high school kid point fingers on your territory!" When I thought of being scolded by Matsumoto police, Megu gritted his teeth. Matsuda, you fool, dared to leave on Christmas Day. Don't want any vacation in the future!!!

"Hey, police department." Matsuda gently resisted Megu and woke him up, and said sneakily: "Why don't we go have a drink tonight? I'll bring my family, you bring your money."

"Okay." Megu agreed gloomyly. Matsuda Man, who didn't know how precious things he had lost in the future, thought he had made a profit, and rushed to the scene with enthusiasm, scanning for all the clues that could be used.

"Now, please tell me what you are doing at 3:30 to 4:00." Matsuda brought a small notebook to the butler Fumio Koike: "Then let's start with Mr. Koike. Please tell me in detail where you were doing at that time."

"I kept chatting with my neighbors at the gate from 3:30 to 4:00." Kochi said carefully when he received the green light from Matsuda.

"Yeah, yeah." Matsuda nodded with satisfaction: "It seems there is a witness, so..." Matsuda turned his head and aimed at the deceased's son Tsujimura Tsukimura and his fiancée Yukiko.

Tsujimura Tsujimura hugged his frightened fiancee Kaneki and replied to Matsuda: "We arrived home not long before our mother came back, and we met Mr. Koike at the door. When we entered the house, we went to the study to find our father, but the study was locked and there was no response when knocking on the door. So we got down from the second floor, and then our mother came back."

"What about the old man?" After the record was recorded, Matsuda asked the deceased's father.

"I came at around two o'clock. Adong locked him in the study room, and Gongjiang went out again. I watched TV in the living room next to the study room for a while." The deceased's father, Takihiko Tsujimura, replied.

"Where is Mrs. Tsujimura? When did you go out?" Matsuda asked the last suspect.

"I left home before one o'clock." Koe Tsujimura replied calmly.

Seeing Matsuda's rare questioning, Megu looked around easily, his eyes locked at a cabinet full of cds by the wall: "There are so many cds here."

"Yes, our master likes to listen to classical music the most." Butler Kochi explained.

Classical music? Conan keenly grasped something. When we first came in, we were clearly playing opera.

Conan finally showed his head, but Matsuda was staring at him. Seeing Conan who was about to fall, Matsuda's eyes lit up. Why did he forget to be serious? It is better to keep an eye on Conan, the little devil in this situation. Well, I'm actually for work. After all, the clues found by this devil are the key to solving the case.

Conan, who was completely unaware of being targeted by an unscrupulous policeman for very legitimate reasons but very improper purposes, began his difficult journey to solve the case.

Well, I swear this is the last time, and I will never have any expectations for this bastard Matsuda in the future. Meguchi, who was idle, saw Matsuda staring at Conan affectionately, and immediately labeled him as if he could not do anything. He secretly grabbed Kogoro, and Meguchi whispered: "Brother Maori, I can only rely on you this time, how about it? Are you a little surprised about the case?"

The prisoner, the prisoner is... Conan, who came up with the truth, was finally knocked down by the disease and was about to fall to the ground with a heavy head. At this time, a figure felt that he had caught him in time.

The next second, people saw clearly that the figure turned out to be Matsuda. Matsuda turned out to be Matsuda. It turned out that he saw something wrong with Conan's body. Megu was very ashamed of his guess about Matsuda just now. However, he did not notice the smile on Matsuda's lips, otherwise he would not have been able to find out. In fact, he misunderstood Matsuda again.

He has transformed and is about to transform. One of the two most incredible events of the famous detective is about to happen! Matsuda excitedly grabbed Conan who was about to faint.

Of course, the two incredible events of the so-called detective are Matsuda's own definition. One of them is the transformation of Conan Edogawa into Shinichi Kudo, and the other is the transformation of Shinichi Kudo into Shinichi Edogawa.
Chapter completed!