2girls, ass, bare_shoulders, black_gloves, black_leotard, black_thighhighs, blue_hair, blunt_bangs, bodysuit, breasts, copyright_notice, covered_navel, dolphin_wave, elbow_gloves, fingerless_gloves, from_behind, gloves, grey_hair, highleg, highleg_leotard, highleg_swimsuit, jet_ski, large_breasts, leotard, looking_at_viewer, looking_back, marvelous, multiple_girls, nayuki_hiori, night, night_sky, ootomo_takuji, purple_eyes, red_eyes, schnee_weissberg, sky, smile, swimsuit, thighhighs