Yoruichi Shihōin is the former (22nd) head of the Shihōin Clan, one of Soul Society's four great noble houses. She also served as captain of the 2nd Division of the Gotei 13 (with Marenoshin Ōmaeda as her lieutenant) and as commander of the Onmitsukidō. Since defecting from Soul Society and thus forfeiting her leadership positions around 101 years ago, Yoruichi has come to work alongside Kisuke Urahara and Tessai Tsukabishi, based in the Urahara Shop out in the Human World.