What is the scariest thing in the world? "Love" is the scariest thing. For it, people can willingly give everything, including their own lives, without any regrets.
Because of love, she did not hesitate to destroy her ten thousand years of Taoism and make a deal with the Emperor of Heaven, just for a chance to stay by his side. In order to make him happy, she was willing to put down her pride, pretend to be his beloved, and be a mortal substitute. In order to save his beloved, she would rather sacrifice her own life. Even when he found out that she was faking it and wanted to kill her, she didn't give a damn. It was all just because she loved him.
Even if he has long forgotten the agreement he made in his previous life, even if he falls in love with someone else in this life and completely forgets her and no longer loves her, she still loves him, hopelessly and uncontrollably in love with him...