 Kureno and Akito have a sexual relationship, and when Shigure learned about it, some time before the start of the series, in retaliation he slept with Akito's mother, Ren.Akito keeps Kureno away from the rest of the family to hide that he is no longer cursed, and Kureno does most of Akito's work as the head of the family.As a result, Kureno is so sheltered he is 26 when he first visits a convenience store, where he meets Arisa.