Reishishi

The Reishishi (霊志士, literally "Souls of High Purpose") is a political activist organization dedicated to overthrowing the Central 46 in order to take over Soul Society. While there exists multiple individual groups, each of them with their own agenda and leaders, there is a single man that stands at the very top of them all: Ikuei Shiba, a student of Shōyō Shakyamuni, who trained alongside the infamous former criminal, Seireitou Kawahiru, and the well-known hero of the Akujin wars, Raian Getsueikirite. Ikuei is supported directly by four powerful hitokiri that have made their names known in the recent years.