I don't know what that is but feel if I Google it I'll start seeing all sorts of odd porn.
Discussion
lol it's not porn stuff. "yumejoshi" is a japanese word that means "dreaming girl"
it's generally a term for women who selfship with fictional characters. men who do so are called yumedanshis ^^
i do it mostly cuz it's fun. while there CAN be porn, there is an equal amount of, if not more, sfw yume content out there