Leon Li, who holds the dual identity of Dragon Lord and Medicine Sage, grows weary of obsequious flattery, disguises himself as a beggar to live among ordinary people and experience the true nature of humanity. His childhood friend Shaw Chen and fiancee Lily Guo, seeing him in destitution, start an affair and hold a wedding. Bella Shen, the daughter of the Shen family, suffers from a terminal illness. Touched by the kindness of Bella's younger sister, Leon steps forward to treat her, defeating the Medicine King, Medicine God and Medicine Fairy one after another. Bella Shen swears to marry Leon Li to repay his kindness. At the wedding, Leon Li uses his authority as the Dragon Lord to dismantle Shaw Chen's business foundation, then uses his power as the Medicine Sage to subdue Shaw Chen's father Tyler Chen. He punishes the wicked and rewards the good, finally wins Bella Shen's heart, and lives a happy life with his mother.
