Yuki became the second wife of a wealthy family running a successful company. Initially kind, her husband now treats her like a mere housemaid, tightening his control over her. Viewed as a threat by her stepsons due to her position as stepmother, new conflicts arise among them. When the eldest stepson causes serious trouble, Yuki's chastity is jeopardized, pushing her further into despair. Trained as a sex slave by her husband, facialized by her stepson, and repeatedly creampied by friends, Yuki is dominated in every way. Each act becomes a pivotal moment that drastically alters the course of her life.