A young wife, Marie, who married an older man. She wants to build a good parent-child relationship with her stepchild, Naoki, who is the same age as her, but she doesn't go well. With a feeling of clinging to her straw, Marie consults her Naoki's friends, and she learns an unexpected fact. That night, Marie talks in Naoki's room, and she accepts her distorted desires as Naoki complains about the loneliness of her single parent. However, it is a trap set by Naoki, and Marie, who has her weakness grasped, has no choice but to obey without telling her husband.
