16-year-old Tachiko (Kimiko Asuka) discovers the true nature of her father's wife, Fumie (Michiko Sakyo), who is after the fortune of the company president, Gozo (Keisuke Senda), and recommends divorce to him, but she is kidnapped and her virginity is stolen by Hayata (Ryoichi Amano) who is colluding with Fumie. After the funeral for her father, who committed suicide out of pity for his daughter, Tachiko disappears.