Talk:Guidelines/@comment-27159607-20180722045457/@comment-24828824-20180722085512

Not really no, an AU can go from something as small as Ruby being faunus to something as big as a crossover-fic between RWBY and One Piece changing the entire story but using the same characters. OCs you want to RP with in the general "Fanon" i'd say you want those to be compatible with canon but if you just want to do an AU its free game.