Top: Doujindesutvyoukosorikorikanootokonok

So putting it all together, the user is likely referring to a doujinshi or fan-made content involving a TV show or series featuring a demon (Youko) and a raccoon dog (totonoko). However, the term isn't standard, so there might be a misspelling or specific reference I'm not getting. Maybe it's a specific character from a known anime or manga? For example, Youko from "Yu Yu Hakusho" meets a totanoko in a fan-made story.