Misaki Honda, a married woman with a hardworking husband, catches the eye of her boss at work, whose attention begins to stir emotions within her. However, her husband is consumed by his job, leaving her no chance to confess her feelings. Learning of this, her boss intensifies his advances, drawing Misaki—innocent and inexperienced—into a world of seduction. Exposed to extreme fetish play and rigorous training completely opposite to her kind and sincere husband's nature, her sense of chastity gradually crumbles. Lying to her husband and keeping secrets become part of her daily life, and Misaki starts to recognize her own growing lewdness. She reflects, "Wasn't I never this submissive before?" This story portrays the emotional transformation of a wife whose loyalty wavers in her marriage. No bonus footage included.