Yeonjun, whose frail health prevents him from working, lives burdened by immense guilt towards his older brother Yeono, who supports him.
Wanting Yeon-o to live his own life, Yeon-jun deliberately speaks harshly to him. He then heads to Las Vegas, determined to fulfil his dream of beating the world's greatest poker (Hold'em) player, Deus, just once, win the prize money, and become independent.
However, on his very first night in Las Vegas, he witnesses the murder of Anafa...