After her husband's business fails, Kanako is forced to live with her in-laws and her brother-in-law, Takao. Though grateful for Takao's kindness, she soon discovers a sinister family conspiracy lurking beneath the surface. To settle her husband's debts, Kanako is made to bear the burden of preserving the Iio family bloodline, subjected to relentless breeding training by every male member of the family. As familial bonds twist into acts of incestuous gang rape, humiliation, and creampie after creampie, a tragic tale of power, betrayal, and violation unfolds.