Song Shi On (Chu Young Woo) is a 22-year-old university student who is majoring in contemporary dance. His family disapproves of his lifestyle choices and career ambitions – and after a major row, he has been thrown out of the family home. He resolves to pursue his dreams, no matter what. And the decision leads him to share a rooftop apartment with Jin Hong Seok (Won Hyung Hoon). The latter is a 28-year-old debt collector for the lending firm Chachacha Capital, working for the beautiful but money-motivated CEO Cha (Lee Soo Ryeon) – a woman who also appears to have a crush on him. Jin Hong Seok has given up on his dreams to pursue a lucrative but unfulfilling career. But spending time with Song Shi On changes his perspective on life, and the duo forms a close bond that eventually turns romantic. But social pressures – as well as the affections of CEO Cha and senior student Jung Hoon (LEX) – threaten to derail their fledgling love story…
가난한 집에서 태어나, 초등학교만 졸업한 채 생활전선에 뛰어들며 평생 험한 길만 걸어온 칠성파의 2인자 조폭 김득팔. 늦깎이 학생으로 대입을 준비하던 그에게 조직은 두목의 자리에 오를 것을 제안한다. 조폭으로서의 삶과 학업의 갈림길에서 고민하는 득팔. 우연히 자살하려는 열아홉 고등학생 송이헌을 구하려다가 사고를 당하고, 그의 몸에 영혼이 들어가게 된다. 이헌의 몸에서 빠져나갈 방법을 찾던 득팔은 이헌이 자살하려던 이유가 홍재민 패거리의 학폭과 왕따 때문이었음을 알게되고, 이헌이 대신 복수해 주기로 결심하는데...
