I quietly returned to my seat, flipping through the photo album once more, my thoughts elsewhere. But soon, a faded old photograph caught my attention.  

　　It was a picture of Lucas with a young woman. Lucas looked youthful, likely in his early twenties, and the girl was around the same age. She was beautiful. What struck me most was Lucas's arm casually draped over her shoulder—a detail I couldn't ignore.  

　　A swirl of emotions flooded my chest, a mix of ...