Yuuri, who got married to her husband who has a stepchild, struggles to live alone with her son-in-law, Yoshio, while suffering from unfamiliar parenting. She was supposed to live a happy married life, but her ex-boyfriend suddenly visits her. She said, "...why didn't you marry me?" Yoshio, the son-in-law who was watching the whole story. Finally, it was decided to be violated even in front of the son-in-law ….
