15-year-old Imai Hibiki has been struggling with androphobia (fear of men) for some time now. Her apartment was burnt down, prompting her to move out. The head of the Student Union, Kousaka Giou, invited her to live with him after falling in love with her at first sight. Despite this, Hibiki has become untrustful and depressed since their initial meeting. Will she be able to overcome her fear of men and trust another person again?