Lyn, widely recognized as a "Queen of OSTs," provides the song's emotional core. Her vocals are airy yet grounded, carrying a sense of nostalgia that fits the "longing" theme of the lyrics. By contrast, Han Hae’s rhythmic, melodic rap sections inject a modern energy. This juxtaposition creates a balanced soundscape where the soaring choruses feel earned by the grounded, conversational nature of the verses. Narrative Integration
The choice of a duet is symbolic; it represents the two souls (or one soul and one machine) attempting to find a shared frequency. Lyn, widely recognized as a "Queen of OSTs,"
The music video serves as a visual bridge for the series. It utilizes carefully selected scenes from the drama to highlight the chemistry between the leads. Han Hae’s rhythmic