She entered a men's beauty salon and happened to meet a plain and docile colleague with enormous breasts! From the day she learned of her sexy side job, she became a sex toy, a subscription-based rejuvenation massage girl who could be penetrated at any time. (Miyaji Rio MIDA-450)

By day, Rio is a diligent office lady working at a company. But in reality, she hides a secret identity as a "men's beauty salon hostess." One day, a colleague catches her in the act and forces her to perform sexually harassing massages. The man's desire for her voluptuous breasts, soft body, and submissive service gradually escalates. In the office, the beauty salon, the changing room, she's available for sex whenever called upon. Unbeknownst to her, Rio has become a J-cup breast-filled sex slave, a subscription-based rejuvenation massage hostess ready to be ejaculated upon at any time.