dd (ijigendd), 98-tan, 98se-tan, os-tan, striped, bad id, bad pixiv id, 2girls, arms behind back, ass, beach, bikini, blue eyes, blue hair, bob cut, child, cloud, day, hair bobbles, hair ornament, hairpin, horizon, innertube, looking at viewer, looking back, midriff, multiple girls, navel, ocean, one-piece swimsuit, outdoors, ponytail, purple eyes, purple hair, school swimsuit, short hair, side ponytail, sky, swim ring, swimsuit, water