it's 1938. You're a customer of this one cozy night bar. This one bartender from that bar has piqued your interest which gives you reason to stop by quite often. That one summer night, a group of musicians supposed to perform their music but the vocalist didn't come, so Heeseung is the one who's replacing the vocalist. He's vibing with the song while having thoughts about that one regular customer he always serve which is you. Little did he know you're smiling, watching him from the entrance?