She is a demon king, but a stunningly beautiful woman. Together with Ghost Butterfly, Xuexin, Fable, and Rose, she rules the demon realm.
Originally, in ancient times, the Demon Realm was sealed by the magic power of the gods. Later, it was unsealed with the blood of a mortal woman. This woman was Xi Meng who was reincarnated into the human world. The Demon Realm regained power and the gods were unable to recover.