An innocent college student is deceived by a wicked beauty salon.
It's her first time visiting this salon. Apparently, they use aphrodisiacs in their treatments, activating female hormones to relax the body. Though suspicious, the girl changes into the treatment gown they give her. The fabric is so small that her breasts and vagina would be exposed at any moment if she didn't cover them with her hands. Her young, mature H-cup body is massaged in a suggestive way... and finally, her vagina opens wide. She falls into a special sex treatment with a male organ, convulsing and going wild with pleasure. Trapped in the pleasure swamp of the wicked treatment, her hidden masochistic tendencies awaken—her cervix is conquered, her body is transformed into one that experiences uncontrollable orgasms and incontinence, and the girl who never smiled finally breaks down.