Year five of the unified Chang Empire and San, the emperor who brought peace to the chaotic world, has returned to his home of Changhunsung in disguise. There San meets a demigod cast out from heaven by the name of Kang. Relationships between humans and demigods are forbidden, but San can’t help but feel a strong sense of attraction between them. Bound by a tremendous fate neither can refuse, their lives intertwine yet again.