katsu (24791909), oumae kumiko, hibike! euphonium, commentary request, highres, paid reward available, traditional media, 1girl, blue one-piece swimsuit, blush, breasts, brown eyes, brown hair, ceiling, changing room, closed mouth, collarbone, completely nude, covering privates, feet out of frame, from below, holding, holding swimsuit, holding unworn clothes, indoors, leaning forward, locker, locker room, looking at viewer, looking to the side, medium breasts, medium hair, messy hair, navel, nude, one-piece swimsuit, school swimsuit, solo, standing, swimsuit, unworn swimsuit