full body portrait of a japanese female school restroom ghost appearing 12 years old, short round build, round shoulders, short legs, black chin-length bob haircut, blunt bangs, inward-curled ends, red cloth mask fully covering the face with two round eye openings, no eye makeup, eyes showing more sclera than iris, old dark blue sailor school uniform, red neckerchief, white short socks, black indoor shoes, right hand on a restroom stall door, left hand holding an old rubber ball, dark red stain on skirt hem, eyes curved into an eerie arc, natural standing pose, full body visible, entire figure within frame, pure white background, isolated, cinematic lighting, ultra-detailed, film still quality, 8k