A 35-year-old news caster living alone with her stepson harbors unfulfilled desires in her daily life. One night, after getting drunk at a party, the intoxicated mother returns home and, unable to reach the toilet in time, ends up wetting herself in front of her son. The situation worsens when, carried away by alcohol, she engages in a forbidden relationship with him. A few days later, when her son's classmate visits, the mother is threatened with having her son's hidden camera masturbation footage posted online unless she obeys. From that day on, she becomes a sex toy for the boys. Forced to pee herself in various locations and exposed in humiliating situations, she unknowingly undergoes masochistic training. Gradually awakening to the pleasure, she begins to enjoy wetting herself, her face lost in blissful ecstasy.