At the private Chenguang Academy Machida High School, a severe cheating scandal has erupted, triggering a chain of conflicts between unruly parents and teachers due to campus violence. The inappropriate behavior of physical education teacher Tetsuro Chihara (played by Takayuki Yamada) and art teacher Takeshi Kume (played by Daisuke Hirakawa) has further tarnished the dignity of this sacred profession. Amid this chaotic disorder, the homeroom teacher of Class 2-4, Seiji Hasumi (played by Hideaki Ito), continues to uphold his perfect and pure image as a teacher. With graceful demeanor, humility, and an angelic appearance, lies a cold, demonic heart. He meticulously sets up one subtle trap after another, silently eliminating those who threaten his existence. Physics teacher Daiwa (played by Mitsuru Fubuki) secretly investigates Hasumi's past and background, trying to uncover his true nature alongside his student Keisuke (played by Shota Sometani), but this leads to a series of bloody murders. On the eve of a joyful school festival, blood spills everywhere... This film is adapted from the novel of the same name by author Yusuke Kishi.
