As soon as you enter the room, there are two pillars arranged vertically and parallel to the wall next to it.

There are many hooks on the pillars, which should be used to rest Japanese swords or wooden knives on them.

The floor is made of wooden boards, and the part near the center of the room is black and looks very old. Judging from the layout, this room must have been a sword dojo in the past.

There are also two framed words hanging on the wall, which read "Victory with the True Sword" and "A Thousand Miles of Despair" respectively.

In a place like this, a man was stabbed to death with a real sword.

The armored warriors are in the center of the room, relatively close to the inside, standing side by side, just like a pair of door gods.

Both armors were facing the center of the room, or it could be said that they were looking at the corpse lying there.

One of the armored warriors holds a sword firmly in his hand. It turns out that there is a hand-like structure on the inside of the armor's gauntlet, into which the handle of the sword can be embedded.

Kyoko Kirigiri approached the armor and observed it carefully.

"The torso of the armor is also stained with blood. It should have been spattered on it. The blood is still very fresh. It can be considered that it was stained by the blood that was splashed everywhere not long ago. Blood stains can also be seen on the floor nearby."

"Let me tell you, sister Xiangzi, the murder weapon is this Japanese sword, right?"

"Well, because there seems to be no other external injuries."

"Then where did the 'Tsota Nuki' mentioned in the challenge go? I didn't see anything similar to a tanuki (Tsuta Nuki contains the Japanese pronunciation of tanuki)?"

"I think that's the name of this Japanese sword."

"Oh, oh, it's indeed very possible."

Yui took out her cell phone and checked it out. The correct way to write it seemed to be 'Tōda Nuki'.

"Hey, something is still wrong with this situation. I can't think of any other possibility besides the armored warrior stabbing the uncle to death."

The man in the Hawaiian shirt said with a stiff expression.

"If a person stabbed the uncle to death, where did that person go? He can't be found anywhere."

"Did you run away——?"

The brown-haired woman said in a long voice.

"Ah? You see clearly, both windows are locked. Anyway, no matter what, the outside of the windows is covered with wooden lattice, so no one can get out."

"The other door is also sealed tightly with a rubber band from the inside." The man in sunglasses walked to the door that opened to the left and right in the room.

"The knob lock is not locked, but there are rubber bands wrapped around the left and right handles, and some tricks are used to prevent the door from being opened."

"The door we came in through seemed to have a rubber band hung between the door handle and the hook on the wall, and then wrapped several times."

The brown-haired woman said as the severed rubber band rolled into a ball under the door.

"This should be called a secret room, right?" said the woman wearing glasses calmly, "Maybe the murderer is hiding somewhere in this room."

But several people took a general look at the room and found no place for anyone to hide.

"Sister Kyoko." Yui whispered to Kyoko Kirigiri while being careful not to be heard by the people around her, "If this is the secret room of the 'Black Challenge', then this matter has something to do with the Crime Victims Relief Committee, right?

"

"Then is there a mechanism somewhere in this room, such as a place on the floor that can be opened, or a wall that can rotate, etc. This is how the murderer escaped. Is it possible?"
Chapter completed!