Ke Xue: Shinichi and I are childhood friends

After Yuya left, the remaining few people investigated in the room, and then came to the restaurant to prepare for dinner.

Before dinner, Nanatsuki Koshimizu stood up and said, "I'm going to the bathroom."

After a pause, he said, "Eat slowly, don't finish all the dishes."

"Oh, don't worry." Hattori Heiji answered without raising his head, but his mouth did not slow down at all.

Nanatsuki Koshimizu came to the bathroom, but she did not go in. Instead, she stood at the door and hesitated for a long time. After looking around to make sure that no one was there, she walked towards the second floor lightly.

When passing Yuya's room, Nanatsuki Koshimizu subconsciously looked at the door.

As if responding to her expectations, the door suddenly opened, and Yuya walked out holding an envelope.

Both of them were a little surprised to see each other.

Nanatsuki Koshimizu was slightly flustered, and forced a smile: "Kamiya, it seems that you have already written the reasoning process?"

Yuya nodded slightly, looking at Nanatsuki Koshimizu with deep eyes.

Nanatsuki Koshimizu was a little flustered by his gaze, pretending to be embarrassed to adjust her scarf, and asked shyly: "What's wrong, Kamiya, is there something strange about me?"

Yuya shook his head and said with a smile: "Natsuki Koshimizu, it seems that you have also solved the method of the secret room?"

Natsuki Koshimizu was stunned: "Ah, this..."

Yuya said again: "Are you going back to the room?"

Before Nanatsuki Koshimizu answered, Yuya continued: "Or do you want to go to the northern representative to check the answer?"

Natsuki Koshimizu was shocked, but pretended not to know: "No, I just want to go back to the room to get something."

Did he notice something? Otherwise, knowing that it was the time for the competition and that Kaguya Renzo had specifically reminded him, why would he ask such a question?

"Is that so?" Yuya pretended to be ignorant and said, "I was just about to go find him to get the answer."

Natsuki Koshimizu smiled a little unnaturally: "But, aren't we still in the competition? Mr. Kotani also said that we can't tell others about our reasoning process in advance."

"It's okay," Yuya waved his hand, "Both he and I claim to have solved the secret room. As a detective, we should have enough confidence in our reasoning, so even if the other party's reasoning process is different from ours, we must insist that we are right."

Natsuki Koshimizu looked a little puzzled: "Insist that you are right..."

Yuya smiled: "Of course, if the reasoning is wrong, you must boldly admit it. After all, reasoning about the case is not a game. Once it is wrong, it may wrongly accuse an innocent person and cause something irreparable to happen."

"Are you right, Southern Representative, Yumizu-san?"

Yumizu-nanatsuki was full of thoughts and forced a smile: "You are right."

Yuya said: "Okay, then you go get your things, I'll go find the Northern Representative classmate." Then he turned around and prepared to leave.

"Wait a minute, Kamiya-san." Nanatsuki Koshimizu suddenly called him.

Yuya turned around: "Is there something wrong?"

Nanatsuki Koshimizu was silent for a while, and said: "Can I go with you?"

Yuya hesitated: "Hmm? But you..."

Nanatsuki Koshimizu said quickly: "Actually, I have some reasoning about the secret room. Seeing that you are so confident, I can't be sure whether it is right or wrong, so I didn't say it just now."

"Is that so," Yuya pretended to think about it for a while, and finally nodded, "Okay, you come with me."

Nanatsuki Koshimizu breathed a sigh of relief, but she was a little anxious.

If Yuya was there, she would have no way to do it. If he was really as rumored, could she fool him away with this person's ability?

The two came to Tokatsu Junya's room, and Yuya raised his hand and knocked on the door.

"Who is it?"

"It's me, the Eastern Representative, Kamiya Yuya."

Tokatsu Junya came over quickly and opened the door. He was a little surprised to see Yuya and Koshimizu Nanatsuki appear together.

Yuya raised the envelope in his hand and said with a smile: "I have written down the reasoning process. How is your secret room prepared?"

Tokatsu Junya was a little surprised, but felt it was reasonable: "As expected of you. Not yet. Preparing a secret room is not as fast as writing."

"So, what do you want to see me about?"

Yuya smiled slightly: "I want you to check the answer."

Tokatsu Junya was stunned: "Check the answer? But..."

Yuya waved his hand and said: "Don't worry, I have written down the reasoning process completely. I will use the content here as the answer I submitted. No matter what the result is, I will not change it."

"Now you and the Southern Representative are here, you can both serve as witnesses, alwaysAren't you afraid that I'll cheat?"

Tokatsu Junya laughed dryly, and immediately regained his previous confident look: "Of course I believe what Kamiya said. But this Nanbu, Koshimizu, right? What about you, have you figured out the secret room method?"

Koshimizu Nanatsuki hesitated, nodded and said: "I have a rough guess." Then he took out a folded envelope from his right pocket.

Tokatsu Junya nodded with satisfaction: "Come in and talk."

The three of them went into the house.

Yuya quickly scanned the room and found that the windows had been removed, the screws used to fix them had also been removed, and some of them had been cut into two pieces. Next to it was an open toolbox and a set of tools, as well as a bottle of adhesive.

Tokatsu Junya said: "My secret room is more convenient, so let's start with me. "

Seeing that the two had no intention of objecting, Tokizu Junya walked to the desk by the window, picked up a good screw and a cut screw, and showed them to Yuya and Koshimizu Nanatsuki.

"Mr. Tsuchio was ambushed and tied up, there should be no need to reason, the key is how to arrange the room into a secret room, please look at this."

Tokizu Junya pointed to the dismantled window, and then pinched the good screw and said: "This kind of embedded window is fixed to the window frame with screws. As long as the screws are removed, the whole window can be taken down directly."

He held up the cut screw again: "Next, cut off the end of the screw, and then install it in the screw hole according to the original position."

Tokizu Junya pressed half of the screw into the screw hole, and then tightened it with a screwdriver, and then said: "In this way, from the outside, it will be no different from the original. "

Yuya and Nanatsuki Koshimizu nodded slightly. Apparently, they had both reasoned to this point. In fact, they were both holding the script, but one knew the plot, while the other knew the method and was also the mastermind behind the scenes.

Tokatsu Junya certainly didn't know the true situation of these two people, and he continued to set up the secret room.

"Then, apply adhesive around the window frame..." He opened the bottle of adhesive and applied a whole circle of adhesive along the dismantled window.

"Finally, just put the window back to its original position, and pay attention to covering the traces of disassembly. When the adhesive dries, the window will be the same as if it had never been dismantled."

Yuya applauded: "Excellent reasoning, and such skillful methods. I almost thought that the northern representative student had solved the same case. "

Tokatsu Junya's face changed slightly, and Koshimizu Nanatsuki also subconsciously looked at Yuya, with a little shock in his eyes.

The two of them had the same thought in their hearts at this time:

Does this Kamiya Yuya know something?