The original owner, Jiang Yingying, was framed by her stepmother and sent to a mental hospital at the age of 19. She was later killed by a housekeeper sent by her stepmother. After her death, her soul was replaced by Princess Jiang Yingying from the Cat Planet. Princess Jiang Yingying came to Earth with a mission from her mother to find a high-quality man to improve her genes. She learned that the original Jiang Yingying's fiancé was just such a man, and she was determined to marry Fu Shiyan and have children with him. However, the male protagonist, Fu Shiyan, was dying and didn't want to ruin Jiang Yingying's life or have a relationship with her.
