The lyrics portray a woman's desperate plea to a lover who is leaving. Key themes include:

Every day is spent in longing, holding onto the "heart-beating" memory of their kiss. Vocal Analysis

is a soulful ballad by TaeYeon , released on December 13, 2010, as the main theme for the action-drama series Athena: Goddess of War . Known for its emotional depth and TaeYeon's powerhouse vocals, the track remains a beloved staple in her discography. Song Overview & Background Release Date: December 13, 2010.

The song underscores the tragic love-hate relationship between lead characters Lee Jung-woo and Yoon Hye-in in Athena: Goddess of War . Lyrical Meaning

The singer apologizes for being unable to forget her lover and asks them to return and stay by her side.

TaeYeon’s performance on this track was highly praised for its maturity, especially considering she was a rookie solo artist at the time.

Composed, written, and arranged by Ahn Young-min , a renowned producer for artists like Davichi and SeeYa.

Expressing the pain of a love that has turned into a "heart-breaking memory".