Sonnet is a cyborg/esper from a harsh background and now trained to be the ultimate warrior and most powerful weapon in the world. She is sent to Japan to watch Komatsuzaki Lan, who is thought to be controlled by the rage of the esper Akai Kiba (Crimson Fang). Lan is a quiet girl who knows she`s different from everybody else and starts to show signs of Crimson Fang after comming into contact with Sonnet. In the course of fighting with Lan, Sonnet starts to rediscover her humanity. At the same time Lan has to fight to retain her humanity and control the Crimson Fang.
Hiromi Tsuru
Masashi Hironaka
Waka Kanda
Ichiro Nagai
Nozomu Sasaki
Tessyo Genda
Issei Futamata
Miyoko Asô
Emi Shinohara
Masaharu Satô
Yuko Minaguchi
Mari Yokoo
Kozo Shioya
Seiko Nakano
Nobuo Tobita
Rei Sakuma
Kazumi Tanaka