After a long, exhausting day at work, four office ladies visit a luxury spa for some much-needed relaxation. As they receive soothing oil massages, the skilled therapist begins an intense, meticulous big ass treatment, expertly targeting every sensitive spot. At first, they try to restrain themselves, but as the pleasure builds, their bodies start to tremble with desire. When they catch sight of the therapist's huge cock, they're overwhelmed by an irresistible urge to be filled. Completely lost in the sensation of their big asses being worked over, they can't hold back any longer and climax repeatedly in ecstasy. For 180 intense minutes, Mizuki Yayoi, Hono Wakamiya, Chiharu Miyazawa, and Merii Hoshi surrender to overwhelming pleasure, experiencing deep, creampie-filled satisfaction as they're healed in both body and mind by this passionate massage.