Unspoken melody.

Night had fallen, and Heeseung graced the stage with a captivating concert performance. As he sang, his gaze stumbled upon a fleeting glimpse of Rena, an old friend who had left Korea before he could confess his feelings. A moment of surprise washed over him as he briefly halted the song before carrying on, only for her vanishing into the crowds. Once the concert finished, he dashed outside, searching for her, despairing as she was nowhere to be found.