It has been 10 years since Nono Yuki's mother left her for another man. She lives with her father, who is always concerned, loving, and takes good care of his daughter. But things got worse when Yuki had a boyfriend; she wanted to go to Tokyo to work and live with him. Yuki's father discovered the letter where they made plans to meet. He then became angry and decided to monopolize his daughter, whom he had always cared for every day; he did not want her to belong to anyone else.