She is a princess of the demon world. Due to the damage to her soul in the war between the heaven and the demon world three hundred years ago, she lost her memory and was hidden in the human world. She accidentally became the sister of a military general of a country, and later fell in love with the king at first sight.
He is the eldest son of the demon world. Three hundred years later, he was engaged to the princess of the demon world. Seeing that the wedding was approaching but his fiancée still didn't wake up, he went to the mortal world in person to find her soul.
It turns out that at that moment of gazing, I have fallen in love with you.
Everyone in the world wants to control their own destiny, but everything is destined by God.