He and she were once the most enviable couple.
He was the Demon Realm's Second Prince, and she was the little princess of the Celestial Realm.
They grew up together.
He built her a dreamlike fairy-tale world with his own hands, only to make it collapse.
After returning, she was no longer the fragile, naive little princess she had once been, and she no longer needed him.
But he refused to let her go.
The hurt he had caused could not be undone. Since she could not forget it, he would build something perfect for her all over again.