Family role: Mother: Muzan Father: Kokushibo Son: Kaigaku All the demon 12 Kizuki (uppermoons) is so bored until some demon came up with an idea to playtime house like their master is the mother and Uppermoon 1 is the father while the other uppermoons is a random stranger so they agreed

Muzan Kibutsuji: Sing humming tone Washing those dishes (I hate it)

Kokushibo: Good morning honey!

Muzan Kibutsuji: wha- what? Kokushibo that’s weird I’m not your honey?!