A gifted girl protected by a mountain deity falls in love with an amnesiac general she once saved. Bound by a vow that drives them apart, she later reunites with him, only to be met with cold suspicion. Disguised as a soldier, she joins his army and uses her prophetic abilities to protect him. But when her people face annihilation, Bu Nian’s true identity awakens, forcing her to choose between the man she loves and the destiny she was born to fulfill.