Soundtrack #1 — Season 1

Eunsoo is asked to write lyrics by a famous composer. She asks Sunwoo, to help her with the work while living at her house.

Sunwoo and Eunsoo get awkward with sudden touch and then get along as usual as if nothing had happened.

Eunsoo is confused after learning about Sunwoo's mind. Meanwhile, Wooil confesses his feelings for Eunsoo and asks to get to know her slowly.

After Sunwoo leaves, Eunsoo spends her daily life writing lyrics. However, she feels empty because she can't share this with Sunwoo.