Ha Si-heon was a peerless investment genius who amassed hundreds of billions of won on Wall Street. But all the money in the world couldn't save him from a rare, incurable disease. Just as he draws his final breath, a miracle occurs: he regresses 10 years into the past, waking up as a rookie employee back on Wall Street.Knowing the grim fate that awaits him, Si-heon realizes that his only chance at survival is to personally fund the research and development of a cure—a pharmaceutical endeavor that will require an astronomical, unimaginable sum of money.The clock is ticking. To save his own life, Si-heon begins a desperate, high-stakes game to build an empire of massive wealth all over again!