Triathlete unzipping wetsuit on Seoul mountain path

Harsh arena lights cut through the deep night sky, illuminating a triathlete mid-stride on a paved mountain path near Jongno. The runner wears a black wetsuit pulled down to the waist, hands gripping the zipper tab to lower the fabric further. Condensation clouds from their mouth hang in the cool late summer air, visible against the dark background. Sweat glistens on exposed skin under the artificial glow. The path curves slightly uphill, bordered by faint shadows of distant trees. The athlete's muscles tense with effort, shoulders driving forward as they move across the frame. One white lane marking on the asphalt catches the light near the runner's trailing foot.