She is recognized as the devil incarnate in the three worlds. She is mischievous and "does all kinds of evil", but no one dares to say anything wrong with her. The reason is very simple. She has a master who protects her with great status, ability, and dotes on her. As the saying goes, - the background is hard. But one day, her master "died" for thousands of years due to misfortune, and no one came to protect her again. On the contrary, it was she who went through hardships to awaken the master. When the master returned from the calamity, he saw that his apprentice was no longer willful and stubborn, and no longer did whatever he wanted. Instead, he became calm and sensible, as if he was a completely different person. The master fell into deep thought. ——If my apprentice doesn't make mistakes, how can I protect my shortcomings?