Eun-soo's quiet life turns upside down following a routine hospital procedure when an IVF clerical mix-up leaves her pregnant with an unknown donor's child. Her bewilderment turns to sheer terror when black limousines encircle her apartment, and Gio, the ruthless patriarch of the city's dominant crime syndicate, steps through her door to announce that he is the biological father.
Though Gio commands an army of lethal enforcers and shows no mercy to rival syndicates, he surrounds Eun-soo with lavish security and unexpected tenderness. As rival cartels launch ambushes against the pregnant mother, Gio throws himself in front of gunfire to keep her safe. Witnessing his fierce protective loyalty, Eun-soo must decide whether to embrace her place as Queen of the mafia empire.
