Do Do Sol Sol La La Sol

It's Gu Ra-ra's big day. Sunwoo Jun catches her off-guard with a memorable first encounter, moments before her world comes crashing down.

Jun finds himself unable to leave Ra-ra's side after she leans on him for support. Cha Eun-seok becomes curious about Jun and protective of Ra-ra.

Ra-ra starts again from scratch with the help of old dreams and new neighbors. As Eun-seok gazes from afar, Jun looks out for Ra-ra day and night.

With the help of generous supporters, La La Piano Land opens its doors. Jun and Eun-seok vie for a spot in Ra-ra's heart and on her piano bench.

Jun slowly opens up to Ra-ra, who warmly embraces his sadness. Eun-seok is surprised to learn about Jun's true identity.

The traumatic incident behind Jun's secretive life is revealed. A mischievous salon customer joins La La Piano Land as an overzealous student.