Top agent Yi Leng was betrayed by a traitor during an overseas mission and lost contact with the organization. Later he learned that his wife died in a car accident and his daughter Yi Nuannuan was injured and lost her memory. In order to find out the truth and protect his daughter, Yi Leng returned to China as a homeless man after plastic surgery and became a restaurant chef "Huang Pihu". With Wu Yumei's restaurant as a base, he used various special agent skills to resolve the bullying, kidnapping and fire crisis that his daughter encountered; at the same time, the real estate industry Shang Wang Xincheng was instigated by Wu Dezu, the mysterious man behind the scenes, and used Yin Weiran and others to attack Yi Nuannuan many times. Ou Li appeared as the biological sister of his deceased wife Xiang Mo. After receiving Xiang Mo's heart transplant, he developed an emotional bond with Yi Nuannuan and became Yi Leng's potential ally...
