A completely fictional Japanese woman, clearly adult, 20 years old, not resembling any real person, celebrity, actress, model, or idol. Cute, approachable Japanese-idol-inspired facial harmony, a naturally small balanced face, expressive realistic eyes, soft cheeks, a delicate natural nose, and softly balanced lips. Realistic adult facial anatomy, subtle natural asymmetry, and believable skin texture. A lightly toned athletic adult figure, a moderately full bust with realistic weight and natural proportions. Light-blue denim short overalls with one shoulder strap fastened and the other hanging loose, a delicate necklace, flat sandals. An upper-body portrait from the chest upward, front-facing camera view, camera positioned clearly above her and angled downward, a realistic smartphone wide-angle perspective, leaning close toward the camera, head tilted slightly to one side, both arms crossed gently in front of the upper body, each hand resting naturally near the opposite upper arm as if softly hugging herself, shoulders slightly raised, elbows relaxed, upper body leaning forward toward the lens, face fully visible and looking directly at the camera, warm playful smile, close-up vertical portrait, camera positioned slightly above and directly in front, subtle wide-angle perspective, daytime, a casual Japanese beach hut, clear weather, bright realistic summer sunlight with natural shadows, a natural realistic everyday smartphone photograph. Tasteful, non-explicit, securely clothed or covered, no accidental exposure. Aspect ratio 9:16, 1536px output.