While playing the role of a strict teacher on the surface, Makiko has been repeatedly having affairs with her students behind closed doors. She looked forward to nothing more than sneaking off after school to enjoy the body of a young man. However, recently, the hot-blooded student has begun to press her for a relationship at school in search of more excitement. The affair takes place in a dangerous situation with other students right in front of her. Makiko desperately tries to suppress her voice and avoid being found out, but... She feels a thrill and sense of immorality that she has never experienced before, more than usual.