Kangoku Jikken

Aito Eyama suffers relentless bullying from his classmates, particularly from Aya Kirishima, who leads the torment. He receives an invitation to join the "Captivity Game," a scheme offering substantial financial reward to the winner. To participate, he must act as a captor and imprison someone for a month. He selects Aya as his target for revenge. The game allows the captor to treat the prisoner however they wish, as long as they do not kill them, and the captor's identity must remain secret. The game provides an isolated cell, legal immunity, and resources to sustain the prisoner. As Eyama carries out his revenge, he meets other captors with their own motives. Aya resists her imprisonment and tries to escape, which risks awakening a dangerous impulse within Eyama.