Liu Jia, a wasted girl who was given high hopes by her incompetent parents but failed to succeed. In his middle age, he was exploited by his incompetent parents and died of illness in a rented house. God gave her a chance to change her life.
The memory was randomly implanted into the head of a demon king, allowing him to turn around and take on the important task of saving Liu Jia.
As they get along, feelings gradually arise. . .
Concept: The thoughts of a good-for-nothing girl