masterpiece, 1girl, bangs, black hair, black thighhighs, blush, brown thighhighs, closed mouth, covered navel, green eyes, hair between eyes, long hair, looking at viewer, old school swimsuit, on back, one-piece swimsuit, open shirt, purple hair, red neckerchief, sailor collar, school bag, see-through, serafuku, shiny clothes, short sleeves, solo, swimsuit under clothes, thighs, twintails, wet shirt, white shirt