If you’re cosplaying Demon Slayer’s Lower Moon Five Rui from the demon spider family, black suit superman then you need this Demon Slayer Rui cosplay costume. See more ideas about fantasy clothing, fantasy fashion, elf costume. It feels like every time a convention rolls around that I’m just not ready. And when I do finally muster up the courage to get my costumes and supplies together, I feel like I’m scaling back, thor adult costume like I’m not performing at the level I was planning at the first of the year.