Liu Yicheng was originally a divine physician of the Dragon Kingdom. In order to be close to patients and indifferent to fame and fortune, he has been practicing medicine in small hospitals for decades. He has cured many difficult and complicated diseases at a cheap price and is loved by patients. However, Zhang Jian, the disciple who once promoted and taught him, was an ungrateful white eyed wolf. After becoming the chief physician, he looked down upon his master and expelled Liu Yicheng from the hospital on the grounds that he was too old to create benefits for the hospital. Liu Yicheng spent his entire life practicing medicine with integrity. After being forced to retire from his medical position, he was forced to sweep the streets for the sake of his family's livelihood and his son's dowry. He was also humiliated and mocked by Zhang Jian. At the same time, the son of the richest man was seriously injured, and the entire provincial hospital was shaken. Even the most authoritative overseas medical expert team was helpless. In desperation, the provincial dean ordered to spare no effort to find retired Dr. Liu, hoping that he could use his medical skills to save the son of the richest man. At this time, Zhang Jian was also facing a crisis in treating patients due to his arrogance, but he did not know that only Liu Yicheng's injection could turn the tide