Following his master's dying wish, Chen Haoyu descends the mountain to break off his engagement. He initially hopes to find a simple security guard job and live a peaceful life, but unexpectedly encounters Su Yuyao, the female CEO of Jiangcheng, who has fallen victim to a scheme. After rescuing her, he discovers that she is actually his betrothed. The chubby girl in the old photograph has transformed into an extraordinary beauty. Chen Haoyu becomes Su Yuyao's personal bodyguard, using his unparalleled medical skills and supreme martial arts prowess to eliminate internal family enemies and crush various underground forces. Following clues from fragments of an ancient jade, he heads to the capital while repaying enormous debts and uncovering the truth about his royal ancestry.