Soundtrack #1 — Characters & Cast

Quiet selflessness; driven by a desire to preserve Eun-soo’s happiness above his own romantic longing.

Begins as a reserved photographer harboring an eight-year secret crush, suppressing his own emotional needs to protect the friendship. By stepping away overseas, he allows space for his own career and feelings, ultimately returning confident enough to meet Eun-soo as an equal partner.

Emotional candor; motivated by professional ambition and an intense protective loyalty toward Seon-woo.

Starts as an outspoken, energetic lyricist who views love in black-and-white terms of instant confession. Upon realizing the depth of Seon-woo’s hidden feelings and subsequently enduring his physical absence, she experiences the painful ache of longing herself, gaining emotional maturity.

Professional insight; acts as a catalyst for Eun-soo's artistic and romantic awakening.

An experienced music producer who pushes Eun-soo to elevate her craft through emotional authenticity. While he develops a gentle romantic interest in her, he gracefully steps aside when he perceives where her heart truly belongs.

Relatable warmth and comedic grounding.

A married couple running the local restaurant where the leads drink and confide. Their bickering yet deeply committed dynamic serves as a living template of lasting love born from realistic compromise.