"My vagina keeps leaking urine, I'm sorry..." The sensitive, climax-prone female teacher, Kuroshima Rei, who had been summoned to the principal's office for days and ejaculated on the bed, is now experiencing a series of orgasmic leaks. (SONE-577)

Kuroshima, a beautiful but weak-willed and submissive female teacher, accepts impure requests from male students and unwittingly helps them ejaculate. This scene is witnessed by the principal. After being summoned to the principal's office, she is threatened with punishment and dismissal, and Kuroshima begins a relationship with the principal that is almost a slave contract. Although initially unwilling, as time passes and bodily fluids flow from her genitals, Kuroshima becomes increasingly lewd. When the principal calls her, she always smiles, experiencing repeated orgasms while her genitals are wet.