"Other rooms?"

Behind the corridor corner are five rooms from '307' to '312'.

The most inner one is the empty room, and the next door is the tea room.

"Did the criminal enter the victim's room at that time and kill him?"

But Mitsu was in charge of surveillance in the corridor at the time, and according to her testimony, no one came out of that room during the time before she and Nanucun entered the scene.

In other words, the prisoner was still in the victim's room at that time.

In this case, they should bump into the prisoner.

But the prisoner was not at the scene.

"Actually, the disappearance trick itself is not important. Rather than saying it is a trick, it is better to say that it is a trap set for the subsequent secret room murder to be established."

"trap?"

"Ms. Yui-sama, weren't you actually confused by this disappearing phenomenon and stayed in the empty room for a long time?"

"...Although it is a long time, it is only twenty minutes?"

"Twenty minutes is enough to strangle a person to death. But the actual time to commit the crime may only be about ten minutes."

"At that time... behind the wall with the number x painted on it, was the prisoner strangling Mr. Tea's neck?"

"That's it."

May Rain is speechless.

If they were not distracted by the strange things in the room at that time and went to the next room immediately, they might be able to save the victim.

They fell into a trap, were tricked into disappearing, and unintentionally contributed to the establishment of the secret room technique.

"But... how did the prisoner kill Mr. Okashita? When we entered the scene, the prisoner was no longer there? How the prisoner entered and exited the secret room, this mystery has not yet been solved. Or is it that the prisoner had some control over how to enter and exit the secret room freely?

unique method?”

"There is no way."

"No way?"

"Sister Yui, you said that the room is a 'completely sealed secret room', right? Yes, the door is locked, there are people watching in the corridor, and there are hard iron bars on the windows. It seems that no one can

Enter and leave this room."

"It is indeed a completely sealed secret room."

"That's right, no one can enter or exit that secret room."

In a room where no one could enter or leave, the victim was strangled to death with his hands.

"Then what on earth is going on?" Wuyue Yujie was made a little dizzy.

"Think about it carefully, sister. The secret room is almost impeccable. The prisoner cannot enter or leave the room. However, the victim was strangled to death directly with his hands. What can be done to make this possible?

?”

"...It would be impossible without superpowers."

Wait, superpowers?

"Could it be that...! He was once a person with super powers——"

"No." Kirigiri denied it before hearing the answer. "Recall the condition of the corpse, especially the fatal injuries on the corpse, which are the pinch marks on the neck."

Upside down pinch marks.

Logically speaking, this kind of mark can only be left by pinching the victim's neck from the side of the head while he is asleep.

However, if you think about it more carefully...it is extremely unnatural for the prisoner to deliberately strangle the victim in this way.

Was the victim really asleep at the time?

Could he sleep in that extreme situation?
Chapter completed!