A wife who was secretly raped by her adoptive father without her husband's knowledge. An adopted daughter, Aosaka Aoi, awakens to new sexual desires and gradually becomes accustomed to being a sex slave. (FW-012)

Aoi, a promiscuous wife feeling inexplicably empty and lonely in her relationship with her husband, tries using a dating app to alleviate her loneliness. Unexpectedly, she encounters her stepfather, who has been eyeing her with predatory intent. Initially confused, they cross the line, and their relationship is witnessed by an insurance agent. Having her weakness regarding her relationship with her stepfather exploited, Aoi is subjected to relentless licking of her feet and armpits by the insurance agent, ultimately becoming a sex slave to three men…