Chen Yan, the lowest-ranking Taoist boy in Qingzhu Temple, appears to be submissive, but in fact he hides the inheritance of the "Feeding Sutra" that he awakened from a dry well, and can use the soul blood to feed the monsters for his own use. In order to find out the truth behind the family's destruction twelve years ago, he forbears to pretend to be a pig and eat the tiger, and shows off his shocking skills when exorcising evil spirits for others. He rescues Su Tan, an escaped slave who is entangled in strange things. The two work together to solve the mystery, but gradually get involved in the conspiracy of Xuanqing Pavilion, which performs devious things in the name of "great kindness". When the hypocritical pavilion master shows his fangs, Chen Yan feeds all kinds of tricks and breaks through the netherworld, tearing apart all hypocritical masks with the most arrogant attitude.