an ORDINARY Korean man in his mid sixties — explicitly NOT a fashion model, NOT idealised, NOT a beauty-standard face. A real individual Korean face: slightly asymmetric features, visible skin texture and pores, a facial structure that is clearly distinct from other people. He is a retired teacher who now runs a small neighbourhood class for adults. He looks approachable and well-groomed, but ordinary. Full white hair combed back, round thin-rimmed glasses, a soft grey traditional-cut linen jacket with a mandarin collar. Warm, soft, low-contrast indoor light bouncing off pale plaster; the blurred background is a plain warm wooden room interior, heavily out of focus, with completely BARE walls — no framed pictures, no hanging scrolls, no posters, no paper, no books and nothing written or printed anywhere. Warm, crinkled eyes, a slow closed-mouth smile. Square 1:1 social-media profile photo, photorealistic candid portrait photograph. FRAMING (strict): the crop ends at the middle of the chest — nothing below the chest is in frame. The head, the neck and BOTH shoulders are all fully inside the frame, with a small margin of empty space above the hair. The subject fills most of the frame and is centred. The background is visible but softly out of focus. Normal healthy human anatomy: head, neck and shoulders all clearly present and correctly proportioned. NORMAL neck proportions, not elongated. NO hands and NO arms in the frame at all. No text, no letters, no characters, no numbers, no signage, no logo and no watermark anywhere in the image. Do NOT include any real company logo, real brand name or real trademark.