A young woman named Seven Wings finds herself living alone with her mother after losing contact with her father. In order to help ease her mother's burden, she decides to become a home helper for their landlord, who happens to be confined to a wheelchair due to his disability. Initially, Seven Wings offers assistance with basic household chores, but soon discovers that her client has ulterior motives. He begins to sexually harass her, escalating from simple requests to full intercourse without protection. Despite her initial resistance, Seven Wings eventually succumbs to his advances and becomes his willing sex slave, enduring various humiliating acts such as naked apron service, breast fondling, and even piledriver positions. As time passes, she slowly transforms from a naive girl into a submissive sexual plaything at the hands of her manipulative employer.