When there is only a thin line between redemption and madness, who is the real monster?
Yuma Sato - a weak boy who has been bullied on campus for a long time, has long been accustomed to living in despair, until the transfer student Hayato Kurosaki breaks into his world like a storm.
Hayato used blood to build a protective wall for him, but it also dragged him into a deeper abyss.
Hayato's eyes burned with morbid obsession, and he remembered everything Yuzhen had forgotten - the vows made by Tsubasa's brother in the orphanage, the paranoia of ten years of searching, and the killings committed to protect Yuzhen.
Misaki Hoshino - a similarly scarred observer who is both afraid and obsessed with Hayato.
When she discovers that Yu is Hayato's only weakness, jealousy and desire intertwine into a dangerous game.
The addition of Ryunosuke Maeda has upgraded the madness.
This pervert, who is sexually excited by Hayato's murderous intent, escalates the bullying game into a life-and-death bet.
When the police, police, and the ghosts of the past are approaching at the same time, Yuzhen must make a choice between twisted love and bloody redemption - to escape Hayato's sick asylum, or to fall into the eternal darkness with him?
Purpose: Find the meaning of life