The former king of the special forces "Han Feng" Gu Chengyuan retired due to the trauma of the sacrifice of his comrades, and became the personal bodyguard of a wealthy businessman incognito. From a cold employment relationship of mutual distrust to establishing an unbreakable bond and love in a life-and-death crisis. The two fight side by side amidst the intrigues and dangers of the city, healing each other's wounds, and eventually discover that their destinies have been intertwined by a past tragedy.
