Higan

She is one of the four Beast Commanders of the Danma Army, a modified human who has fused with darkness and Higan. It is said she was modified around the same time as Shakugan, but her spiritual power surpasses even that, rivaling the spirit form Jinka Yamato with four tails. Her real name is Hino Raidō, and she is the younger sister of Raidō Zanzō. In her quest to gain legitimate authority, she committed the forbidden act of cursing someone to death, a violation of the rules, and as a result, was executed by Jinun.