setsuna rio, watanabe you, love live!, love live! sunshine!!, absurdres, highres, 1girl, armpit crease, arms behind back, backless swimsuit, blue background, blue eyes, blue one-piece swimsuit, blush, breasts, brown hair, competition swimsuit, dot nose, from side, gradient background, grey hair, light particles, multicolored hair, multicolored swimsuit, nose blush, one-piece swimsuit, sideboob, simple background, smile, solo, streaked hair, swimsuit, two-tone swimsuit, upper body, wet, wet clothes, wet swimsuit, white background