Haruka Takeuchi has been assigned to Antaku Gakuen as a temporary teacher.In the class she is in charge of this time, there was Mochizuki, who has a genius brain despite not attending school. Haruka tries to persuade Mochizuki to come to school, even though he is a maverick who is tacitly tolerated by his school that "study isn't the only way to be young."Enraged by this, Mochizuki pushes Haruka away and begins to play with Haruka's body when she faints.