>>73263309A yumejoshi is a woman who loves a character a lot and will make self-insert fanfics or fanart with their oshis. If it's not them inserting themselves with a character outright, they will just make an OC. They often make shrines and itabgs too. Fujos and yumejos have an overlap but they are separate things at the end of the day
in my experience, yumejos tend to be more chill, just don't call their husbandos shit 