2girls, asakura_toru, bare_legs, barefoot, beach, beach_chair, beach_umbrella, bikini, blush, breasts, cloud, drooling, eyewear_on_head, frilled_bikini, frills, hair_bun, horizon, ichikawa_hinana, idolmaster, idolmaster_shiny_colors, looking_at_viewer, mouth_drool, multiple_girls, outdoors, sand, single_hair_bun, sunglasses, swimsuit, tinted_eyewear, umbrella, uouokuma, wavy_hair