"Will things go so smoothly?" Yaki said, crossing his arms, "Speaking of which, two people can kill each other when they are alone in the sword dojo."

"In that case, I might be suspected. Ultimately, the murderer used a trick to clear himself of suspicion."

"Whether it's a trick or a rock, just say it clearly."

"Here's the thing." Kirigiri crossed his arms behind his back and turned his face to the door at the back of the room. "First of all, make preparations, that is, seal the door leading to the backyard with a rubber band."

"If you just want to seal the door, you can just lock it, but the reason why the murderer deliberately used rubber bands is to prevent the rubber bands on the other door from looking out of place. It can be said that this is to keep the secret room intact.

Let’s unify.”

"The key is the rubber band over there in the outer corridor, right?"

Kirigiri turned his gaze to Yui and nodded.

"Next, the murderer placed an armored warrior in the center of the room. This was a deception to make the police suspect that the victim committed suicide using the armor. In fact, the police did tend to interpret the case as a suicide."

"Judging from the situation at the scene, we can only speculate this way."

One of the detectives said with an unhappy look.

"This is exactly what the murderer expected. Since the scene is a secret room, it is impossible for the four suspects to commit the crime, and there is no possibility of a third party. In this way, we can only suspect that the victim committed suicide. And

Judging from the situation at the scene, suicide is not impossible."

"There has been a case where someone could not get the life insurance money because he committed suicide, so he created the illusion of committing suicide... However, it is rare for the deceased to disguise himself. However, the essence of this case is not that.

Wrong?"

"Well. If the victim himself disguised suicide as homicide, I don't think there is any need for him to create a secret room. Instead of a secret room, it would make the suspicion of homicide even greater. Unfortunately, this case is not a suicide disguised as homicide.

'."

"Is it really a secret room murder case? It's just that it feels like no one can commit the crime..."

"No, there is only one of them who is likely to commit a crime."

When the detectives heard what Kirigiri said, they observed the faces of the four suspects.

Sumu, Bagui, Du Ruo, and Shuijingshan all looked quite nervous. They looked at me and I looked at you.

"It's not complicated, you just need to use this loose secret room. First, the murderer stabbed the knife into the unconscious victim's back in the sword dojo between ten and eleven o'clock in the evening, and deliberately let

Blood splattered on the armor.

"But it was just a false clue to lead us to the conclusion of suicide. Then, the murderer stuck the jack in the door leading to the outer corridor, hung the rubber band between the doorknob and the hook on the wall, and wrapped it

Several laps.”

Kirigiri put down the jack she found in the waterwheel hut and pushed it into the gap between the two open doors. The gap between the doors was about the width of a fist.

"At this stage, tighten the rubber band as much as possible. After this, use a jack to widen the door gap."

Kirigiri shook the handle of the jack, and the door crack opened little by little.
Chapter completed!