Still 17

Gong Wu-jin, 17, works up the courage to speak to his school crush, but their chat inadvertently puts her in harm's way -- and into a 13-year coma.

Wu Seo-ri searches for her relatives, but the neighborhood has changed. Then she recalls something that might still be where she left it 13 years ago.

After learning that her violin needs expensive repairs, Seo-ri tries to find a job, but it isn't easy. Yu Chan gets Seo-ri to open up about her past.

When Seo-ri blames Wu-jin for causing her to lose sight of her uncle, old feelings of guilt resurface inside him, leading him to move out.

Chan develops a crush on someone. Seo-ri makes a familiar gesture that triggers flashbacks in Wu-jin, who seeks out his former psychiatrist for help.

Wu-jin tries to avoid Seo-ri, who drinks alcohol for the first time with her new co-workers and is introduced to concert violinist Kim Tae-rin.

When a client tries to take advantage of Seo-ri's naïveté, Wu-jin comes to her rescue -- and gets drunk as a result. Jennifer recalls her painful past.

Seo-ri travels with Wu-jin to a workshop, where she's overheard playing the violin. Later, she and Wu-jin open up to each other about their pasts.

Wu-jin's sister makes an assumption that Seo-ri is forced to play along with. Jennifer meets with the mystery woman. Chan finds a worrying photo.

Seo-ri gets an unexpected invitation, but agonizes over whether to accept it. A remark Seo-ri makes about "seeing music" gives Wu-jin a design idea.

Chan continues to overtrain. Jennifer reveals how she knows so many facts. Wu-jin overhears a conversation that makes him want to protect Seo-ri.

A chat with a stranger brings Seo-ri to a realization. Conductor Sim Myeong-han has a frank talk with Tae-rin. Chan's team competes for a medal.

Chan ignores an injury to compete in the singles race. Tae-rin asks to meet with Seo-ri. Dr. Kim Hyeong-tae finally finds who he's been looking for.

While Seo-ri takes to her bed in grief, Wu-jin agonizes over whether to reveal his part in her accident. Jennifer recalls her own link to the crash.

Seo-ri tells Wu-jin her side of their pre-accident story. Chan admits his feelings to Seo-ri, who later meets the man who paid for her hospitalization.

Seo-ri finally learns what happened to her relatives, and both she and Chan are faced with difficult decisions about their futures.