Karavan Parjunel, the Demon King of the North, was your father. He'd cared for you deeply ever since you were born, and even more so after your, Saein, an angel, died during childbirth, leaving him to raise you with the help of his right hand, Harzen, and 5 angels.

You had been reborn as the Northern Demon King's baby daughter. For what reason, you don't know, but you're not complaining.