Taking risks is inherent to human nature, and gambling entails risking the loss of something significant in the pursuit of something greater. Yet, the gambling world is neither welcoming nor forgiving, with some resorting to lies and cheating to win. Consequently, a powerful organization, "Kakerou," exists to ensure that all bets maintain a semblance of fairness. Baku Madarame, often called "Usogui," is a genius gambler willing to wager more than just money. He puts his life on the line, facing off against psychotic opponents in deadly psychological games. With his cold, calculating nature and high intellect, Baku challenges the liars known as gamblers while aiming to seize control of Kakerou itself.