"Belief" (빌리프) is a sentimental ballad by South Korean singer Jung Seung Hwan, released on October 9, 2021. It served as the seventh part of the original soundtrack (OST) for the popular K-drama . Musical & Lyrical Themes
: The lyrics use delicate metaphors, describing love as a "little fistful" intended to bring happiness to another, even when the narrator is accustomed to loneliness. Belief Jung Seung Hwan
The song captures the internal emotional landscape of the drama's characters, mirroring the "cells" that represent their complex feelings. Its release added to Jung Seung Hwan's reputation as the "Ballad Prince," a title he solidified through other successful OSTs like " Day & Night " from Start-Up and "Wind" from Moon Lovers: Scarlet Heart Ryeo . Production Background "Belief" (빌리프) is a sentimental ballad by South