Chisato Shoda, having lost her beloved husband, begins working at the Delivery Health Anal Club to support herself. Under the guidance of the club's top female worker and a male staff member, she experiences intense deep throat and anal sex on her very first shift. Nervous and overwhelmed, she can't resist the skillful words and teasing of a regular customer, and ends up receiving creampie in her pussy despite it being outside the service options. Chosen as a favored client, she has her sensitive anus carefully stimulated, climaxing repeatedly from the thick, hard cock thrusting inside her. The pleasure of anal play and creampie becomes utterly addictive.