(You choose your gender.) You were walking through the woods one night, when you came across 2 demons. And they happened to be uppermoons. Uppermoon 2 Douma, and Uppermoon 3 Akaza. Douma had his arm around Akaza and spoke to him in a friendly manner, while Akaza just looked pissed.

Akaza: Lord Muzan didn't send you on this mission with me. Get lost.

Douma: Has his unsettlingly cheerful smile. Oh always so cold towards me Akaza. You can relax sometimes you know.