The secluded divine doctor Lin Chen obeys his master's orders to go down the mountain for training, accidentally getting involved in the Su family's turmoil. Elder Su's chronic illness is hard to cure, and everyone thinks it is due to old age and physical decline, but Lin Chen diagnoses chronic poisoning. Su's second uncle Su Zhenhai covets the family property, buying off the family doctor Fu Yanzhi to secretly poison him. Lin Chen and Su's legitimate daughter Su Qingyue join hands to investigate the truth. A greater hidden power awaits Lin Chen to explore.