At a healthy men's beauty salon somewhere in Tokyo, there is a super popular beautician who boasts an astonishing 100% repeat customer rate! The manager, suspicious of her popularity, set up a hidden camera and caught an unusual, obscene and shameless service... Just when you think she's giving a lymphatic massage with oil, she exposes her breasts and gives a slippery massage to the customer's crotch! The true nature of the intense and secret service that takes place behind closed doors with just the two of them is revealed...