Mami has been living with her husband and father-in-law for three years. She wants to have a child soon, but she hasn't had sex with her husband for a long time. On the other hand, she is troubled by the persistent sexual harassment from her father-in-law. Her father-in-law's actions gradually escalate, such as touching her body and forcing her to kiss him, but she can't bring herself to talk to her husband about it... Eventually, due to her daily sexual frustration, she begins to accept her father-in-law's demands...