1boy, 4girls, ahoge, arms_behind_back, ball, bare_shoulders, beach_umbrella, beachball, bikini, black_hair, blue_bikini, blue_eyes, blue_sky, blue_swim_trunks, breasts, brown_hair, cleavage, collarbone, day, dot_nose, film_grain, frilled_bikini, frills, goggles, goggles_on_head, green_innertube, hair_ornament, hair_scrunchie, hat, innertube, itsumura_haruka, izumi_tsubasu, kickboard, leaning_forward, lens_flare, light_brown_hair, looking_at_viewer, low_ponytail, low_twintails, medium_breasts, multicolored_umbrella, multiple_girls, outdoors, palm_tree, pink_bikini, polka_dot_innertube, poolside, rainbow, re:stage!, scrunchie, sky, smile, spaghetti_strap, sparkle, striped, striped_bikini, swimming, swimsuit, tree, twintails, umbrella, wet, white_headwear, yellow_innertube