Mengyao, a little princess in the heaven, was sealed with 90% of her cultivation level because of getting into trouble. She was exiled to the mortal world to accumulate merit. If she did evil, she would be struck by lightning. Unexpectedly, she was penniless when she landed and could only rely on beggars for financial support. In order to fill her stomach, Mengyao started telling fortunes, exorcising ghosts, and investigating unjust cases. She also accepted evil ghosts as her younger brothers and dealt with corrupt officials, powerful people, and evil spirits one by one. In the eyes of others, she is a crazy girl with a reputation for cruelty; in the eyes of the common people, she is a living god who responds to every request. As hundreds of ghosts plead their grievances one after another, a demonic conspiracy that has been dormant for many years gradually comes to light.