Ye Wuchen, the Medical Sage of the Qingyun Sect, descends the mountain to gain worldly experience. Disguised in simple clothes, he takes a job as a security guard at Yunding Group and becomes roommates with An Xiaoqi, a flight attendant. His extraordinary abilities soon catch the attention of the company's president, Gu Qingci. With his miraculous medical skills and unrivaled martial arts, he repeatedly humiliates those who dare to provoke him. Shipping tycoons, martial arts sect leaders, and legendary masters of traditional Chinese medicine all end up bowing before him. Two leading women find themselves caught in a romantic tug-of-war over him, while hilarious everyday mishaps never seem to end. Beneath his ordinary security guard identity lies a shocking secret that could stun the entire city.