Lan's last remnant of her mother--and the fallen Hin dynasty of her ancestors--is a symbol seared onto her wrist, which, if the mysterious boy she encounters is to be trusted, may be the key to freeing her people by mastering an ancient, forgotten art.
Determined to finish her mother's mission, Lan seeks to destroy the legendary four Demon Gods, while Zen, who made a perilous pact with one of these demons, seeks to use their power to save his kingdom and the girl he loves.