"It’s a Family Affair" follows Keisuke, who lives with his ten voluptuous stepsisters and navigates his complex desires around them despite their familial ties. The series centers on his quest to explore intimacy with each sister, blending harem and erotic themes with humor and provocative scenarios. With its focus on large-breasted characters and taboo relationships, the hentai offers fans a mix of fantasy and steamy encounters in a short episodic format.