After losing his girlfriend in an accident, three years later Hyun Wook tries to track down her little sister when he finds out she's struggling. Unknowingly, he's actually making it worse.
Hyun Wook keeps finding excuses to see Se Na, but there's trouble when the loan sharks are hot on her trail again. Se Na hears her song in an unexpected place.
After temporarily accepting the position of President, Hyun Wook offers Se Na a position to train as a songwriter at ANA, but Seo Jae Young wants to get rid of both of them as soon as possible.
Hyun Wook is left to pick up the pieces when Seo Jae Yong and the majority of Infinite Power leave ANA without Shi Woo. Se Na works hard on her song despite being ostracized in the company.
Hyun Wook gets Shi Woo to stay with ANA as a solo singer, and the company must work as a team to transform his image. Se Na must re-work her lyrics to match the feelings of a man instead of a woman.
Se Na is let down when her song isn't used for reasons beyond her control. As Hae Yoon notices Hyun Wook and Se Na getting closer, she becomes increasingly jealous.
As Shi Woo's song gains popularity, offers start rolling in for Se Na as a songwriter. Hyun Wook is nervous as Seo Jae Young starts mentioning So Eun to Se Na.
