The black notebook airborne, "drawing smiling faces", "avoiding red words" and "visiting the archives at night" - if you violate the rules, you will be swallowed by the abyss immediately.
Chen Mu, an ordinary student, is forced into the situation. The circular staircase, the dark shadow in the mirror, and the gaze of the specimen jar, the campus is full of fatal traps. He formed an alliance with the sensory girl Zhang Yao and the technical genius Li Hao, and survived in the cracks of the rules, but he discovered the truth about the disappearance, strange rituals and family fate from twenty years ago.
With obstruction from the school, teachers turning evil, and self-awareness hidden in the notebook, this game is never about passive survival, but a dead end in uncovering the truth and confronting the creator of the rules.
The abyss is on the side, and you can only survive if you break the game - do you dare to bet on the life and death of the next rule?
