Explain cosplay heart plainly. Costume play refers to dressing up and pretending to be a specific character from an anime. This trend has become a massive trend amongst fans of geek culture around the world. Individuals thoroughly design outfits and accessories to accurately portray their favorite characters. Costume players usually participate in events or costume play events, where they can showcase their creativity and meet like-minded individuals who share the same passion. Ultimately, cosplay is an expression of admiration and commitment for a fictional character and a love for the nerd community.