Cosplay is a term that refers to the idea of playing in costumes. It is about celebrating some of the manga and anime characters that have been a huge influence in the culture found in Japan. This could mean individuals who want to dress up and pretend to be their favorite character from movies, comics and other media. In Japan, cosplay is hugely popular among the young individuals, especially with the influence of many anime based filmes, comics and manga.
Japan fashion has changed because of it. You will notice many individuals dressed up this way in their daily lives. As they go about their usual tasks dressed in cosplay outfits, it is not really a huge surprise, as many individuals tend to do this.