A photorealistic candid editorial portrait of an adult Korean female idol in her mid-20s, sitting on the edge of empty outdoor concrete stadium stairs after rehearsal. She wears an oversized white team-style shirt with no visible logo, high-waisted navy shorts, white socks and trainers. Her hair is lightly blown across her face, expression calm and distant with slight tiredness. One hand supports behind her, one knee bent, the other leg extended down a step, torso subtly turned toward camera. A striped sports towel hangs around one wrist, a cold glass bottle drink with condensation held near her cheek. Background shows faded seat rows, open summer sky, a small plastic bag moving in the wind. Japanese negative film aesthetic, photorealistic, late afternoon natural sunlight, slightly overexposed highlights, low contrast, nostalgic reflective mood. Vertical composition, steps create repeating lines, slightly imperfect crop. Color palette: white, navy, concrete gray, faded seat blue. Adult subject only, tasteful non-explicit fashion portrait, no logos, no text, no watermark.