Highly detailed, High Quality, masterpiece, beautiful, 1girl, solo, (young woman, 16 years old), sekai saionji, black hair, brown eyes, ahoge, medium breasts, school uniform, ((shirt, shirt sleeves:1.8)), long sleeves, white sleeves, arms at sides, (black vest, vest), pleated skirt, ((black skirt, waist-length skirt:1.2)), thighhighs, black thighhighs, zettai ryouiki, (front view), open_mouth, from_side,