Rio Kurotori is an Artificier. She trained Biko to become an artificier, and worked as a teacher at the Magic Law School.
Characteristics
Rio is beautiful and cares deeply for Biko. She is regarded as a "charismatic artificier". She is more skilled than Biko at making artifacts and taught her everything she knows.
History
Rio originally worked as a teacher at the Magic Law School, while she lived with her sick mother. She usually wore revealing clothing, but her students complained (except Yoichi, who thought she looked fine), so she began wearing thicker clothing. Her employer told her to wear more revealing clothes, or he would make sure that no one would buy her artifacts. Soon, Biko became her apprentice and soon went off on her own. Rio's mother was attacked one night by a spirit, so Rio ran for help. Her employer wouldn't help (claiming she was rebellious) and others thought she was "vulgar" for wearing revealing clothes. No one helped her save her mother, and she was killed, leaving a message for Rio made by using pieces of a broken comb: "Thank you, Rio". Eventually, she met Enchu, who brought her into the Forbidden Magic Law association of Ark.