1girl, artistic_error, ass, ass_grab, back, bad_reflection, bare_arms, bare_shoulders, brown_eyes, brown_hair, closed_mouth, competition_school_swimsuit, cowboy_shot, deep_skin, eto_(ikumika), from_behind, grabbing_own_ass, leaning_forward, long_hair, looking_at_viewer, looking_back, median_furrow, mirror, nape, one-piece_swimsuit, original, profile, reflection, school_swimsuit, sidelocks, solo, swimsuit, tile_wall, tiles, twintails