Yui, who got married to her husband who has a stepchild, works hard to live alone with her son Jun, even though she is annoyed by 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?" Her son-in-law, Jun, who was watching the whole story. Finally, it was decided to be violated even in front of the son-in-law ….
