Saya, who works at an insurance company, lives with her sickly younger brother. When a wheelchair-bound male policyholder complains that he lost money on his insurance, Saya offers to take care of him. As she wipes the sweat off his body with a towel, he demands that she take care of him. "You said you'd do anything! This is part of the job!" Saya is unable to resist his words and ends up giving him a handjob, a titty fuck, a blowjob, and even a creampie... But before she knows it, she's addicted to the pleasures of sex...