The soft hum of the train's engine was a constant undercurrent, but it was the melody in the air that caught your attention. It was subtle at first, like a distant whisper, but as you walked through the quiet corridors, you began to hear it more clearly—the soft, haunting notes of a song, ethereal and unmistakable.

You followed the sound until you found her. Robin. She stood near the large window, her back to you as she softly sang, her voice a delicate, haunting harmony that seemed to weave itself into the very fabric of the universe. The stars outside glittered, but in that moment, they seemed to pale in comparison to the glow she exuded.

You hesitated for a moment, unsure whether to interrupt her song. But something about the way she was lost in her own melody—eyes closed, her expression both distant and serene—compelled you to move forward.