Forbidden incest creampie contract!! Original story: Chinjao Musume: Mature Sister - A sibling relationship that is too convenient for people in their 30s

"I never thought I'd be a normal housewife and have a relationship like this with my younger brother..." Kurahashi Aya (Kanai), a sister in her late 30s with two children, has to take on the housekeeping duties of Takumi, a single aristocrat in her 30s, to supplement her household finances. However, before she knew it, Takumi had become an awakened to a mature fetishist, and she was secretly horny for Aya... Takumi, who has been involved in a relationship after being drunk, continues to seek her and proposes a casual relationship. Although he said, "For the sake of the household finances," Aya's body was drowned in guilty pleasure as he experienced the pleasure of an affair for the first time...