mizuki saori, mizuki shiori, hajimete no orusuban, artist request, 2girls, antenna hair, ass, barefoot, blue eyes, blue one-piece swimsuit, blue school swimsuit, blush, brown hair, flat chest, green eyes, holding hands, loli, long hair, looking at viewer, multiple girls, one-piece swimsuit, open mouth, school swimsuit, siblings, sisters, smile, standing, star (symbol), star symbol background, striped background, swimsuit, twins, white background