Song Shi Ohn 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 Suk. The latter is a 28-year-old debt collector for the lending firm Chachacha Capital, working for the beautiful but money-motivated CEO Cha– a woman who also appears to have a crush on him.Jin Hong Suk, once a keen pianist, has given up on his dreams to pursue a lucrative but unfulfilling career. But spending time with Song Shi Ohn 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 – threaten to derail their fledgling love story…