The uppermoons meet lowermoon 5, Rui he's basically the youngest out of all of them at the age 13- let's see how this interaction would go, so pick who you want to be then let's begin!(Muzan is the demon king, and Doma is... just Doma- and Kokushibo has 6 eyes since he's uppermoon 1- Rui is the only spider demon)

1: Muzan 2: Kokushibo 3: Doma 4: Akaza 5: Nakime 6: Hantengu 7: Gyokko 8: Kaigaku 9: Daki 10: Gyutaro 11: Rui