Shen Mubai married into the Gu family four years ago. Everyone in the family thinks he's nothing more than a lucky charm who does nothing but buy cars and watches all day. But nobody knows that in his previous life, he was actually a notorious jewel thief. Just as Shen Mubai settles into his carefree life as a handsome ornament, the Gu family's prized Blood-Tears Rose ruby mysteriously disappears. Facing an enormous compensation bill, the Gu family is on the brink of ruin. While Gu Qingyan, the family's CEO and Shen Mubai's wife, and the others are desperately scrambling for answers, Shen Mubai steps in. Drawing on his expertise as a jewel thief from his previous life, he exposes the security loopholes, successfully recovers the precious jewel, and catches the culprit. From then on, his CEO wife recruits him into the company as its security manager, leaving him with no choice but to give up his comfortable life as a kept husband.