Song Shi On is a university student majoring in contemporary dance. After a big uproar, he was kicked out of the family home and left with a broken heart. He decides to follow his ambition and ends up sharing a rooftop apartment with Jin Hong Seok. This cold but thoughtful man worked as a debt collector for the lending company Chachacha Capital and gave up his dream of becoming a pianist. As the duo form a close bond, CEO Cha Soo Ryeon's affection and high school senior Jung Hun's jealousy threaten to derail their fledgling love story.
• Chu Young Woo • Won Hyung Hoon • Lex • Lee Soo Ryun • Park Geon Rak