Mana-Chan Duty (Yoshiie)

In "Mana-Chan Duty" by Yoshiie, the protagonist sexually abuses his dazed, unresponsive sister-in-law Mana-chan, treating her as a passive doll during extended role-play scenarios in the kids' room. These include a dominant 'boss of the house' game involving commands, exposure, oral sex, and vigorous penetration, with Mana-chan only producing involuntary moans and bodily responses. The black-and-white hentai depicts themes of bondage, forced incest, rape, and sexual slavery.