There is a particular ache in measuring a love against the first one. ‘첫사랑의 기준은!’—“What Defines First Love!”—is the second collaboration between Korean R&B/Soul artists Ender and Soyeon, a slow-tempo ballad that sits with that feeling rather than resolving it. Over an unhurried arrangement, Soyeon’s voice traces the quiet work of looking back on a first love and wondering what it set the bar for.

The song keeps its touch light. Built on keys from pianists Jun-hee Lee and aroa, it leaves room for the vocal to breathe, every phrase carrying the weight of memory without ever raising its voice. This is R&B as reflection—warm, patient, and unafraid of a little melancholy.

A slow-tempo soul ballad for anyone still measuring love against the very first one.

The pairing has history. Ender and Soyeon first met on April’s single ‘Troper,’ and reunite here through OPCD—the Changdong, Dobong-gu collective known as the home of beatboxer WING. ‘첫사랑의 기준은!’ arrives as part of ‘LAB 7: Story,’ the seventh self-run project under OPCD Lab, a workshop-like space for the crew to keep testing what their sound can hold.

The result is intimate and unforced, the kind of ballad that rewards a quiet room and an honest mood. Dim the lights, let Soyeon’s voice lead, and let the song ask its question: what, in the end, does a first love define?

#KRnB #Soul #Ballad