Jiang Wantang, CEO of Hanyao Group, is hunted by the mysterious organization Jinmen. Huo Chenzhou, a job-seeking security guard, single-handedly takes down an entire vehicle full of assassins. Impressed by his abilities, she hires him as her personal bodyguard for an exceptionally high salary. Together, they investigate a series of crises involving sniper attacks, explosions, and kidnappings, uncovering the secrets of the Dragon Scale Project. A traitorous second uncle, Gu Chengye, who betrayed his engagement, and Ye Qingyuan, a former comrade-in-arms, emerge one after another, revealing Huo Chenzhou's past as the commander of the Xuanlong unit and an old wrongful case involving their fathers' generation. Together, they thwart the villains' conspiracy to seize control of the city's systems, clear the names of the twelve team members who died years ago, and finally put the past to rest. Their relationship transforms from employer and bodyguard into lovers who vow to spend their lives together.