A group female president secretly audits company accounts, and is plotted against with drugs by her second uncle allied with outsiders. In her moment of peril, she is rescued by a security guard. Appreciating his skills and integrity, she proposes a contract cooperation, hiring him to concurrently serve as her personal bodyguard and nominal husband, offering an annual salary of ten millions. At the family banquet, just as everyone is about to forcibly finalize the arranged marriage, she arrives with her contract husband to publicly announce she is married, and the two join forces to secretly investigate internal corruption and conspiracies within the group.