Shio, a married woman, gets her husband to hire a secretary at his company and becomes aware of the man's gaze. Playfully, she begins offering him sexual favors, but to her surprise, she finds it incredibly pleasurable, leading their relationship to escalate. However, the man grows obsessed and mistakenly administers an aphrodisiac to Shio, demanding she achieve a perfect body. Under the drug's effects, her entire body becomes hypersensitive, driving her to crave his cock as they repeatedly entangle in passionate sex in the bedroom and bathroom.