Lin Yang, successor of the Divine Doctor Sect, possesses superb medical skills and martial arts mastery. Following his master's orders, he descends the mountain to cure Yan Qingcheng's stubborn strange illness, while investigating the old case of his parents' murder years ago. After entering the world, he breaks through numerous prejudices and resolves many troubles brought by the Yan and Jiang families. Four senior sisters with extraordinary strengths always support him steadfastly from behind. Along the way, he guides the talented Xiahou Xue, step by step uncovering layers of secrets and figuring out the huge conspiracy of the Four Saints Association coveting special talents. Lin Yang rallies his sect and senior sisters to eliminate hidden dangers everywhere, heads to the Four Saints Island to settle past grievances, successfully comforts his deceased relatives, and finally stays together with his destined fiancée, Yan Qingcheng.