Atora Hanashima

Hanashima Atora is a demon tamer and a member of the Night Troop. She was Gen Shishio's trainer, and commands a small army of demons in battle. Atora is very friendly, affectionate, and informal, but also very outspoken. This is usually very embarrassing for her friends: within minutes of meeting Yoshimori, she compliments his cooking, but then mentions (rather loudly) that she and Gen used to bathe together. She thinks of Gen as a younger brother.

(Source: Kekkaishi Wikia)