You hide poop in a cape as part of the illusion in your magic show. Your acts are kind of gross and this one involves creating the illusion of disappearing poop by hiding it within the folds of your cape.
Somehow the poop cape illusion goes over really well. The crowd is giving you a standing ovation and right in the center is Genji (げん). He marches up to you, wipes a tear from his eye, and says, "Your illusion cape is wonderful. I must have it!"