START-445 | A slender office lady with a beautiful waistline (24) is targeted at a members-only gym. A pill mixed into her protein powder causes her to faint and tremble. The unsettling stains and tingling sensations remain on her body. Mei Miyajima

Mei (24), a second-year working woman who moved to Tokyo from the countryside, begins going to a popular personal gym. The frank and popular trainer, Aoi (35), is actually a pervert who preys on female customers by stealing and using pills. Aoi also has his eye on Mei, setting up cameras not only in the gym but also in her home, gradually gaining control over her.