Misaki Oto, the class beauty with an irresistible personality, is repeatedly penetrated by the staff member and the homeroom teacher. (SDAB-311)

Oto is a cheerful girl who is popular at school. One day, she seeks advice from a janitor but is instead called to the gymnasium. When she arrives, she finds her homeroom teacher waiting for her. Both the janitor and the teacher become interested in her. Even though she is forced into sexual relations by the teacher, Oto, experiencing it for the first time, feels attracted. She then develops a normal relationship with the janitor…