Dae Gil, born with the fate of being the son of King Sukjong but forced to live his life as if he's dead, overcomes a rough start and becomes a card shark shaking up Joseon. King Yeongjo, born the son of a maid, is endlessly kept in check by his half-brother King Gyeongjong and his power. Born to a family of rebels, the cold-blooded genius Lee In Jwa takes King Gyeongjong under his wing and aims to build his own royal court, consisting of the extraordinary genius politician Lee In Jwa, Lady Choi Sukbin, who holds the king's heart in her hands, her son King Yeongjo, and Joseon's best card shark, Dae Gil. At stake are their lives and the sole throne of Joseon. It's time to wage war like a single, enormous gambling round.