wa (genryusui), arato nagi, ruri no houseki, highres, paid reward available, 1girl, :o, ass, back, bikini, black hair, blue bikini, blue eyes, breasts, earrings, from behind, full body, grabbing own hair, hair lift, halterneck, high heels, holding, holding own hair, jewelry, large breasts, long hair, looking back, multi-strapped bikini bottom, ponytail, shoulder blades, sideboob, simple background, solo, string bikini, swimsuit, thighs, white background