katahira masashi, original, commentary request, highres, 1girl, arm up, blonde hair, blue collar, blue one-piece swimsuit, blue sailor collar, blue socks, collar, collarbone, full body, gradient background, green eyes, long hair, looking at viewer, neckerchief, no pants, one-piece swimsuit, red neckerchief, sailor collar, school uniform, serafuku, shirt, shoes, sneakers, socks, solo, swimsuit, twintails, white shirt