Immortal Jin's Maid Is A Nine-Tailed Fox

After the Heavenly realm lost the war between the demon Realm, they resorted to their last means to win by going back in time. An ability only immortals from the fox pact were able to do. Bai Mei, a prisoner of the heavenly immortals is given a chance to gain her freedom. Her task was simple, she was to use her powers to go back in time and stop 'Jin Lin' A man who would one day become the most strongest demon they would ever encounter. Now just the abandoned and mistreated son of the Jin family, he is a young man that has faced all forms of mistreatment gradually growing in him a ruthless heart. Disguised as a human maid, she would do what it takes to win his trust and stab him in the back.... after all, she didn't earn the title of the 'Most Cunning Fox' for nothing. Yet she doesn't know why his innocent face also hits her heart each time she tries to kill him. "What the heck are you doing to me Immortal Jin?!"