akahito, rikuzaki mini, ganbari daughter, character request, 00s, 2005, 3girls, ahoge, ass, ball, beachball, black one-piece swimsuit, black school swimsuit, blush, closed eyes, collarbone, double bun, flat chest, grass, green eyes, green ribbon, hair bun, hair ornament, hair ribbon, hand on own hip, holding, holding ball, holding beachball, innertube, long hair, multiple girls, one-piece swimsuit, open mouth, orange hair, partially submerged, pink hair, pointing, pointing at viewer, pond, purple eyes, purple hair, ribbon, school swimsuit, short hair, smile, standing, star (symbol), swim ring, swimsuit, tree, twintails, wading, water, waterfall, wet