Fully unleash your obscene instincts! Obscene lessons after school! The carnal instincts begin to awaken in the students who have turned into lustful beasts. ``A female teacher (Mio Kimishima) who has been appointed to rebuild a dilapidated boys' school is subjected to sexual baptism by the evil students who have been rumored to be. One day after school, Kimishima is attacked and hugged by his girlfriend's students. Even as she resists being devoured by her naked body, the wishes of her principal run through her mind. “Even if it means putting your body on the line, let me rehabilitate you.”