Aoi Midori, an outstanding student with a reserved personality and a charming smile, faces a sudden drop in her grades due to an error in the recent exam results. Despite her efforts to maintain her image of her, she becomes desperate in the situation. Aoi devises a plan to fix the problem, but his teacher, Izumi Kuwabara, who is rumored to be a womanizer, stands in her way. Midori tries to blackmail Izumi with a sex video in which his fiancée, Maho Yoshimura, fucks with students, but he does not fail his provocations and rapes Midori.