Wi Dae-han is a former National Assembly member who once dreamed of a just society but lost his political career due to a scandal. Struggling to regain his footing and public favor, he finds his life turned upside down when a 19-year-old girl named Han Da-jung appears at his doorstep, claiming to be his daughter. She arrives with three younger siblings in tow, forcing Dae-han into a chaotic domestic situation he never anticipated. To rehabilitate his image and secure a path back into politics, Dae-han decides to take in the four siblings and present them as a happy, unified family to the public. As he navigates the complexities of fatherhood and the cutthroat world of political campaigning, he begins to genuinely care for the children. The series explores themes of redemption, the meaning of family, and the intersection of personal integrity and political ambition.