A certain oil massage parlor located in Tokyo has become extremely popular among housewives and office ladies through word of mouth. The massage treatments, performed by male therapists, carefully stimulate women's sensitive areas, causing highly responsive clients to lose control completely. The private treatment rooms are filled with an erotic atmosphere, and although customers may not notice at first, as the session progresses and their sensitive zones are repeatedly stimulated, they begin to unconsciously sway their hips in pleasure. Coated in oil, their bodies are enveloped in sensation, naturally reacting as if aroused, surrendering to the overwhelming stimulation.