She is a princess from the heavenly clan who accidentally fell into the mortal world due to an accident.
He is a disciple of the demon clan, who accidentally entered the human world due to a big battle.
They met in Peach Blossom Mountain, and she healed his injuries and took care of him until his injuries healed.
In this quiet Peach Blossom Mountain, the two of them fell in love. However, the arrival of the Emperor of Heaven and the insertion of the demon princess forced the two of them to separate.
They loved each other but couldn't stay together, which became the deepest regret in each other's hearts.
In order to be worthy of her, he began to show off his skills in the demon clan. After many difficulties, he became the demon king.
He went to the Heavenly Palace and asked the Emperor of Heaven, but was ruthlessly rejected. In a rage, he planned to kill the Emperor of Heaven.
And when she found out, she was so heartbroken that she chose to leave him and end her life.
But he only woke up at this moment and felt that everything was not as important as her. He left the demon clan and went to the human world.
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