Charasin ("Karashin" in Crunchyroll's translation of the anime and "Carasin" in Yen Press' translation of the light novel), also known as Young Boss Charasin, is the guild master of 8th Shopping District Center, one of the top three production guilds in Akihabara. He is a Human Summoner-Merchant and a member of the Round Table Alliance. Charasin's real name is Yousuke Mikami (三上洋介 Mikami Yōsuke), and he works in an advertising agency.