Mr. Fu, Madam, She Is Really Not a Mortal.

The King of Hell was framed by his subordinates Bai Wuchang and the judge, and was demoted to the human world by heaven, possessing a mortal woman named Jiang Weixi. She was told that she must save the dying, accumulate merit, and repair Yin and Yang before she can return to the underworld. At the same time, Fu Jinyan, the president of the law firm, has repeatedly dreamed of a woman and a string of phone numbers for ten years. Finally, he dialed the phone one day and met Jiang Weixi, who had just come to the world. The two thought each other was "crazy" when they first met, but they grew closer due to accidents.