1boy, age: 40 years, height: 180 cm, athletic build, short neat black-gray hair with some gray at the temples, strong jawline with fine lines around dark brown sharp eyes, serious expression, thin scar on forehead, small scars on hands, wearing dark yukata (navy/black), formal yet practical, full body, single character, looking at viewer, anime style, simple background, white background, mysterious aura, gentle smile, well-defined muscles, charming personality, thoughtful gaze, elegant posture, refined features, captivating presence, slight stubble