A young man named Goni becomes entranced by the world of high-stakes gambling after his uncle, a seasoned card player, introduces him to Hwatu (Korean card game). The allure of easy money and the visceral thrill of the gamble draw him in deeper, but his inexperience leads to his downfall when he loses a significant sum to a rigged game. Devastated by his loss and the subsequent tragedy it brings to his family, Goni is determined to get revenge. He dedicates himself to mastering the craft of gambling, driven by the resolve to confront the man who ruined his life.

Under the tutelage of a wily gambling legend, Goni hones his skills and becomes immersed in the seedy underworld of illegal gambling. His natural talent and hard-earned proficiency earn him a reputation in the gambling circuit. The mentorship leads him to form alliances and rivalries within the gambling community, all while keeping his eye on the ultimate goal of avenging his initial humiliation. The high-stakes games are fraught with con artists and government crackdowns, but Goni's ability to read the room and maintain his cool under pressure serve him well as he ascends the gambling hierarchy, moving ever closer to his target.