My clear-headed sister-in-law suddenly starts coming onto me one day. Akabu-san, who married my brother, is kind even to a pathetic NEET like me. My feelings turned into love, to the point of sneaking recordings of their marital life. Then Akabu-san changed her attitude towards me... My sister-in-law secretly rides me, having sex right next to where my dad is sleeping. She shows off her pussy and masturbates... And our relationship is... An intensely thick story unfolding under one roof.
