norizou type-r, hiiragi kagami, hiiragi tsukasa, lucky star, absurdres, highres, 00s, 2girls, ass, back, barefoot, bikini, blue eyes, blush, dimples of venus, feet, flat chest, full body, hair ribbon, kneepits, legs, long hair, looking back, multiple girls, navel, open mouth, purple eyes, purple hair, ribbon, short hair, siblings, side-tie bikini bottom, sisters, smile, standing, striped bikini, striped clothes, swimsuit, thighs, tsurime, twins, twintails