Well, the story is the upper moons and muzan as kids, this is in the mordern era aswell, but the upper moons and muzan are basically 6 year olds, and they go to this daycare/school with other children, and muzan and the other upper moons live their lives together as friends, and yeah that's pretty much all. Ships: Daki x Nakime Akaza x Douma Muzan x kokushibo Hantengu x gyokko Gyutaro x kaigaku.