Airi and three her sisters are in a hot sexual relationship with a stepfather in hentai anime story Oni Chichi Rebuild part 2 and the story starts when girl’s mother Kayako returns and hopes to “recreate” her relationship with the stepfather, who already made a sex slaves from her four young daughters. Also the stepfather is ending up being all the more harming to Airi who has been trying their relationship with another young man, her classmate Sana.