Tsubaki is a devoted married woman who values her marriage and has been enjoying a peaceful life as her husband's career progresses smoothly. However, everything changes when her husband's boss suddenly confesses his feelings. He threatens her by claiming her husband is suspected of embezzlement, leaving Tsubaki trembling with shock and fear. Overpowered by the man's relentless determination, she is forced to surrender her body to his desires. Though she never sought pleasure, her emotional defenses gradually crumble, and her will to resist weakens day by day. What awaits her is a chain of new emotions and inner turmoil.