There is an ancient legend on the mainland: "Those who possess both good and evil will rule the world."
He was just an ordinary boy, but he was unlucky and met a strange master, which changed her life. And his master wanted to abandon him when he was in the most danger. He would never let go of the person who brought him into this mess. Take it, master!
She waited for hundreds of years, and finally she found the miracle she wanted, but she had to give up because everything had changed and he was no longer the same person.