In a world where one's literal wealth dictates their supernatural power, Kang Sang-woong is an ordinary, well-meaning
civil servant trapped in a cycle of financial instability. His life is defined by crushing debt, skyrocketing living costs, and the constant stress of barely making ends meet. However, everything changes when he awakens a bizarre and taxing superpower: the more physical cash he holds in his hands, the stronger his supernatural abilities become. This bizarre phenomenon transforms his wallet into his greatest asset and his deepest curse, as every heroic act, flying leap, and display of superhuman strength instantly burns through his hard-earned money, leaving him physically exhausted and entirely broke.Determined to use his unique gift for the greater good, Sang-woong teams up with a cynical yet fiercely loyal group of allies. Among them is Kim Min-sook, his razor-sharp girlfriend whose practical financial sense constantly clashes with his reckless heroism, and Byeon Ho-in, an eccentric lawyer gifted with supernatural telekinesis who immediately recognizes the potential of Sang-woong's cash-drained abilities. Together, this makeshift squad forms a vigilante force, stepping into the shadows to protect everyday citizens from predatory loan sharks, corrupt corporate elites, and sinister syndicates who exploit the vulnerable.As their underground crusade gains traction, the stakes escalate dramatically. A shadowy, ultra-wealthy organization known as the Crimson Syndicate begins targeting super-powered individuals, seeking to harvest and monetize their abilities. Led by a ruthless mastermind who views human life as a mere commodity, the syndicate poses an
existential threat to Sang-woong and his friends. Sang-woong finds himself fighting a dual war: he must not only outmaneuver lethal assassins and corporate corruption, but also constantly hustle just to keep enough cash in his pocket to maintain his powers during critical battles.The climax of the series erupts in a high-stakes showdown at the syndicate's heavily fortified headquarters. Stripped of his savings and facing overwhelming odds, Sang-woong must drain his final reserves and risk total financial and physical ruin to save his captured friends. In a desperate, action-packed finale, he pools every last coin and bill he can scrape together, unleashing a devastating display of power that crumbles the syndicate's empire. Ultimately, Sang-woong survives the ordeal, realizing that true wealth isn’t measured by the money in his bank account, but by the lives he managed to save along the way.