Temporary teacher Haruka Takeuchi is assigned to Antaku Academy, where she is put in charge of a student named Mochizuki—a brilliant but reclusive youth who refuses to attend school. The school quietly tolerates his absence, treating him as an outcast. Determined to bring him back into the classroom, Haruka tries to reason with him. But when Mochizuki realizes her intentions, he flies into a rage, shoving her to the ground. As she lies unconscious, he begins to violate her body—unfolding a shocking tale of youth, truancy, and the twisted relationship between teacher and student.