"What do you mean the mannequins haven't arrived!?" Shiraki, the department manager, is visibly stressed as a sudden production line halt threatens a major client deal. Seeing his distress, his subordinate Yamada devises a bold plan. Having harbored deep feelings for Manager Shiraki since her transfer, Yamada can no longer suppress her desire, despite knowing he is married. Seizing this opportunity, she resolves to destroy his marriage and make him hers. Using the delivery failure as leverage, she begins a calculated scheme to break apart the Shiraki couple's relationship.