They make their own costume or they buy one, already made. So please make a decision carefully. Lydia is a cosplayer, and while we wait for the rest of the group she enthuses about the upcoming London MCM expo and costumes she has planned. Comic inspired costumes coming in soon. Kamado Nezuko Anime Demon Slayer Kimetsu no Yaiba Uniform Outfit Cosplay Costume for Kids Children,Size XS – L are in stock.The order processing time:2-3 working days.