Demon Father Re-birth

At the center of this story is a high school student named Airi Akizuki, whose deeply complicated home life has been shaped by a stepfather, Kouzou, who has blurred every boundary that should exist between them — a dynamic Airi has settled into as her version of normal. That tension is the entire foundation of this one-episode OVA from studio PoRO, based on a visual novel, and it does not shy away from where that premise goes. The setup involves Kouzou taking Airi and her friend Sana to the cinema one summer day, and things spiral from there in ways that pull Sana into the same uncomfortable orbit. The story keeps its focus tight — this is a single episode, so there is no slow burn or gradual buildup. It drops you into the dynamic and stays there. The animation holds up reasonably well for the era, with character designs that are detailed and consistent throughout. If you have already watched Oni Chichi: Re-born or Oni Chichi: Rebuild and want more from the same world and characters, this fits naturally alongside those entries. Oni Chichi: Refresh covers similar thematic ground too, so if any of those worked for you, this one operates in the same space. Be clear about what you are walking into — this is a hentai OVA built around taboo stepfamily content. It is not trying to be anything else, and it does not pretend otherwise. If that is the kind of content you are looking for, this delivers it in a compact, single-episode format.