Deku, a young gambler, accidentally wins all his best friend’s money in a card game. He meets his friend’s sister, Mina, and asks to use her land to grow potatoes. Deku ends up working at a casino to pay off his grandfather’s debt. He impresses everyone with his charm and is promoted to manage the gambling tables. Deku warns Mina of a dangerous gambling scheme targeting her. Mina joins a high-stakes game and wins, outsmarting her opponents. Deku’s intervention saves her from losing everything.