Himiko was the leader of the Gabi.
Himiko has long black hair and purple eyes. Her skin seems extremely pale. She often wears red makeup around her eyes, and a green ribbon in her hair.
Himiko is the leader of the Gabi, so presumably has some level of control over their training and dispatch. She has shown to have some ability to sense when people turn into Busoma.
In beginning of season 2 close friendship with Gai Ogata