Seven Mysteries: No. 1 'The Wind-Clad One Gazing Somewhere' Always at the rooftop of the forbidden old school building. If you go at the witching hour, it's open and a young man is there. Even if he shouts 'Who are you!', you must not answer with your name. If you do, he will think you'll fall with him, and before you know it, you'll fall from the rooftop. Past: One day, when he came to the rooftop after getting lost, he was pushed off and killed due to someone's jealousy. Core: Sword

Because he was a former member of the kendo club. If the core is destroyed, he loses the ability to maintain his domain and loses control.

Seven Mysteries: No. 2 'Shouldering the Burden' Also in the old school building. If you go to the animal hutch at the witching hour, a key will be lying there. Pick it up and open the door; even if the birds stare at you, do not be startled. They are not alive. If you show surprise, you will be eaten to death. <- Scary Past: Long ago, the birds he cared for in the hutch were killed by bullies, and he died from the shock.

Core: Bird statue (the size of a 2-3 year old baby) If the core is destroyed, he loses the ability to maintain his domain and loses control. He becomes a mere ghost.

Seven Mysteries: No. 4 'The Small Bottle in the Science Lab' The science lab in the old school building, where many chemicals and tools remain. However, you must not touch anything related to science except for the chairs and desks. There is an invisible strong acid on the surfaces that can melt your body down to the bone. Past: After parting ways with a close individual on the path between the science lab and the archery range, he entered the lab to get some chemicals, but the shelf collapsed and he died from the strong acid.

Core: Small bottle containing strong acid If the core is destroyed, he loses the ability to maintain his domain and loses control. He becomes a mere ghost.

Seven Mysteries: No. 3 'The Sound of the Bow Hitting the Target Still Resonating' The former archery range in the old school building. Targets and bows still remain, and you can hear the sound of a bow being drawn and an arrow hitting the target. If you enter the room, the sound continues. Even if a voice calls out, 'What did you come here for? Look this way,' you must not turn around. Sit in the chair at the archery range for 5 minutes. If you turn around, an arrow will pierce your head. Past: After parting ways with a close individual on the path between the science lab and the archery range, the moment he entered the range, an arrow accidentally fired by a member in the wrong direction pierced Misaki's head.

Core: A single red arrow If the core is destroyed, he loses the ability to maintain his domain and loses control. He becomes a mere ghost.

Seven Mysteries: No. 5 'The Girl Who Lives with Jellyfish' The biology room in the old school building. There are many tanks containing marine life, such as jellyfish. However, you must not stare at the creatures in those tanks for more than 10 seconds. You will make eye contact with someone from the afterlife and be taken away. Men must never go there. They will be taken away just by approaching the biology room. For women...?

Past: A classmate played a prank by putting a poisonous jellyfish she was raising on her arm, and she died from the sting.

Core: Jellyfish keychain Something she received from a female student while she was alive. If the core is destroyed, she loses the ability to maintain her domain and loses control. She becomes a mere ghost.

Seven Mysteries: No. 6 'The Distorted Wanderer' A young man who walks throughout the old school building. If he touches you, your body will be distorted; if he finds you, he will distort the walls or objects to create thorns and try to stab you.

Past: His admired father died, and from that day on, he died due to abuse from his mother, who said, 'A son like this will die just like his father. I have to make him strong.'

Core: None. He has no core because he has no emotions. Therefore, if you are found and touched, your body will be distorted. He seems to let you go, but be careful! ☆

Seven Mysteries: No. 7 'The Infirmary Where Ignorance is Bliss' The infirmary in the old school building. Sounds like someone being disassembled can be heard from inside. Upon entering the infirmary, the corner of the room is blocked by a curtain. He is absorbed in disassembling. If you don't peek through the curtain without being noticed to see what he is doing, your place on the disassembly table is guaranteed. Congratulations.

Past: He became interested in the structure of the human body and organs, but when he tried to do it to someone, he was only treated as creepy. So he disassembled his own body.

Core: There is no definitive core. However, if you break his disassembly tools, he will freeze for a while. But I recommend you don't do that. He'll get angry later and try to take your organs. Well, good luck.