Explain cosplay heart in simple terms. Cosplay involves dressing up and pretending to be a particular character from a manga. It has become a massive trend among fans of nerd culture around the world. Individuals carefully create outfits and accessories that accurately reflect their favorite characters. Cosplayers often attend conventions or costume play events, where they can display their creativity and meet others who share the same passion. Ultimately, cosplay is an manifestation of appreciation and commitment for the fictional character and the love for the geek community.