Li Xuan is a retired police officer who resigned after a major mistake led to the death of his partner and later became a private detective. He has a calm and calm personality, and possesses excellent observation and analytical skills, but deep down in his heart he hides deep self-blame and guilt. Lin Xi has been able to see things that ordinary people cannot see since she was a child, and can communicate with the spirit world. Her parents died in a car accident when she was a child, and she was raised by her grandmother. When she grew up, she used her abilities to help the police solve crimes.
