@Grandpa_Koko_Puffs KokuDouKaza royalty AU? All in relationship, but two are royal and one isn't so their relationship is very much forbidden, and + the fact that it's gay
Another could be a modern AU just enemies to lovers trope
Then a diff Au of modern future maybe there the three get married >:)
and a diff one where original AU except Muzan is a homophobic bitch and says no no and forbids their relationship
Then one where Muzan insists that they have to get togehter bc he believes tht if they do they'll be stronger, given that humans always be saying love is the strongest thingy but then he wants to test it out to see if it makes the three of them stronger but neither of the three want to be together an they just get mad at each other and fight but at the end they get together, but it doesn't end up making the necessarily stronger and Muzan says they should all just break up bc it was a fail-
then a diff one where Daki ships the three which is what strted their relationship, at first they thought it was very goofy she shipped them but eventually they grew onto each other and blah blah blah etc-
then a diff AU, modern, high school, one of them is being bullied and the other two protect that one which is start of relationship
then a similar AU except those two are the bullies but then they take a liking to the one they bully and eventually go full mode yandere on that one
should I give more??