Big Man

Orphaned at birth, Ji Hyeok (Kang Ji Hwan) has lived a difficult life, struggling to survive through a series of odd jobs. However, his life as he knows it changes completely when one of the largest conglomerate families in Korea claims that he’s the chairman’s oldest son – and the chairman wants Ji Hyeok to give up his heart to his other son and company heir-apparent Dong Seok (Choi Daniel). However, this is all a ruse to circumvent the regular donor transplant list, and after Ji Hyeok finds out the truth, he swears revenge, aided by Mi Ra (Lee Da Hee), the daughter of a company chauffeur and Dong Seok’s girlfriend. But when Dong Seok returns from his heart transplant overseas and learns about Ji Hyeok's relationship with Mi Ra, he vows to ruin Ji Hyeok's life himself.