Lee Hwan (LEE Min-ki), once a rising professional pitcher, is kicked out of the game he loves when he is caught in a match-rigging scheme. Without a place to call home, he has hit rock bottom, until he reluctantly joins Hwangje Group, a large mob that has its hand in private loan, online gambling and real estate businesses. He is noticed right away by Hwangje Capital's boss Sang-ha (PARK Sung-woong) and quickly rises up the ranks.
When it comes to business, Sang-ha is cold blooded, but he treats his men like family and offers infinite loyalty and respect. He instinctively realizes Lee Hwan's boundless potentials and begins to groom him, despite objections from his men.
Only the strongest and fittest survives in this unjust world. Backed by Sang-ha??s confidence in him, Lee Hwan slowly grows his responsibilities and unleashes his explosive ambition?