She is the holy maiden of the heavens and the guardian of the Illusory Moon Stone.
He is the Son of Heaven, brought to the Illusory Realm by the Ghost King Leisha and made to possess the body of the young prince of the Moon Tribe.
He is the Son of the Wind, ruler of the heavenly realm.
The three met in a past life, only to be sealed away.
In this life, who will save whom, and who will bring whom to ruin?
... Author, you have definitely seen Fantasy City. I don't want to say anything else. Author's reply: I have indeed seen it... But I don't mean to imitate it.