A mother named Hikari Minazuki receives a call from her daughter Miho Tono, who has been caught shoplifting at a convenience store. Desperate to make things right, Miho begs her mother not to tell anyone about the incident. In exchange, she offers herself up for any punishment or humiliation that Hikari sees fit. Blinded by love and desperation, Hikari agrees to this twisted arrangement.
The story unfolds as they are led into a private room where they meet the conniving owner of the convenience store and his accomplice. They are subjected to a series of degrading acts including forced masturbation, throat fucking, and even a three-way creampie. As their situation spirals further out of control, both mother and daughter find themselves trapped in a hellish web of shame and sexual exploitation.