An animated adult family-role-play adaptation of Nagisa Tomosawa's manga, presented with in-motion technology. In Episodes 3 and 5, a reclusive man secretly records his adult brother and sister-in-law, but the camera is discovered by the sister-in-law and her adult daughter role-play character. They tempt him into a taboo relationship. Later, an adult former tutoring student visits, witnesses the group together, faints from shock, and upon waking is asked to decide whether to join them. Relationship labels have been clarified as adult role-play because the original uses age-ambiguous family and student roles.