iwasaki kouji, sakuraoka miharu, alto, alto (game), jast, miharu -alto another story-, game cg, 3girls, 6+boys, bent over, black eyes, black hair, blush, breasts, competition swimsuit, covered erect nipples, cowboy shot, hands on own hips, impossible clothes, impossible swimsuit, indoors, innertube, large breasts, long hair, multiple boys, multiple girls, one-piece swimsuit, pool, poolside, smile, solo focus, standing, swim ring, swimsuit, thigh gap, very long hair, water slide