Kokushibou - he is going to be like the guard of the house, making sure everything looks normal and all, has to stop Akaza from shooting Douma's head each time he turns his back for seconds, keeps an eye (or more) on everyone so nobody don't cause any trouble, he doesn't want daddy demon (Muzan) getting pissed once he gets back to see all the mess. Luckily nobody destroyed the house/infinity castle..... yet.
Akaza - definitely will go out for walks alone, he has a lot going in his mind and refuses to express them to anybody, brings all his electronic devices to a local cafe to sit there and relax drinking a white chocolate tapioca tea while browsing his social medias, mostly on Reddit, he almost wasted all of the cafe's WI-FI.
Douma - will keep whining how bored he is and bothers his fellow demon friends like poking or whatever, when he goes up to tell Koku (Kokushibou) how he's bored, Kokushibou will o the typical mom quote "then clean the house" as Douma will quickly nope out of the room where Kokushibou is.
Hantengu - either hanging around in the stair cases or will be at least 12 feet away from the door patiently waiting for daddy demon to come back, normally when Muzan takes really long to come back Hantengu will end up sleeping on the stair case/near the door passed out on the floor, then when he wakes up Muzan is standing right there in front of him telling him to get up and he will nervously get up, just happy to see him again.
Gyokko - does sculpting and paintings, when he's bored he will try different styles of how to paint/sculpt/draw, he had never heard what a drawing tablet is but when he got one recently he got really excited and uses them more often, even meets amazing artists online, but he has to hide the fact that he is a demon.
Daki - normally she has nothing better to do so she would flirt with different people just for attention or make up new dance moves to show off on Instagram/Tik Tok, if that isn't enough to satisfy her she'd at least try to go out by making herself look pretty like the princess that she iss and sneak out only to get caught by her big bro.
Gyutaro - never lets his little sister go out, there's so much danger out in this world so he will be damned if something ever happens to Daki, just pulls her by her ear dragging her back in the house, he'd then apologize afterwards if he hurts her. goes back to streaming on live doing his normal hobby like playing fortnite (pls shoot me), raiding zoom calls and discord servers, or see if there's any new meme, he also can't stop laughing over the Wide Putin meme.
Kaigaku - blasts out heavy metal music screaming like a banshee dancing aggressively, stomping intensifies, head banging until he almost got a seizure for getting to excited till the point Kokushibou busts through the door and hit his head hard, his wound has to be treated afterwards. then he goes on his way to flirt his fellow demon friends only to either get hit again by Kokushibou or getting teleported away by Nakime.
Nakime - she locks herself in her own room so nobody would bother her, either reads a book or predicting when Muzan will come back/what Muzan is doing out there she will be sure to let the upper moons know, anyone tries to go near her? she uses/plays her biwa to make an upper moon to go away from her, she doesn't like to socialize or to be touched.
