Touko Amemiya

The love child of the leader of the Kaorun Company. She is also the current manager of the Kaorun Company's Japan branch in Kaorun City and the board chairman of Kaorun Academy. Childhood friends with Kei Asagiri and harbors obvious feelings for him. Kei was also her only friend when she was a child. As a bastard child, she didn't receive much favorable treatment. When she met Kei, she made a promise to always remain his ally and help him recover and has since been employing him as her personal "Antique Hunter."

(Source: Baka-Tsuki)