horiguchi yukiko, iwasaki minami, izumi konata, tamura hiyori, lucky star, absurdres, highres, official art, 00s, 3girls, ahoge, ball, barefoot, beach, beach volleyball, bikini, black hair, blue eyes, blue hair, blush, day, dirty, dirty feet, everyone, feet, flat chest, friends, glasses, green eyes, green hair, mole, mole under eye, multiple girls, ocean, short hair, smile, soles, swimsuit, toes, volleyball, volleyball (object), water