norizou type-r, hiiragi kagami, hiiragi tsukasa, lucky star, absurdres, highres, 00s, 2girls, ass, back, barefoot, blue eyes, blush, breasts, full body, hair ribbon, kneepits, long hair, looking back, multiple girls, one-piece swimsuit, open mouth, purple hair, ribbon, school swimsuit, short hair, siblings, sisters, small breasts, smile, standing, swimsuit, tareme, thighs, tongue, tsurime, twins, twintails