2girls, akiyama_yukari, arms_up, bag, ball, barefoot, basket, beach, beach_towel, beach_umbrella, beachball, bikini, bikini_skirt, blue_sky, breasts, cloud, cloudy_sky, day, frilled_bikini, frills, girls_und_panzer, halterneck, hand_in_own_hair, holding_hoodie, horizon, jumping, kneeling, looking_at_another, medium_breasts, messy_hair, multiple_girls, mushinosuke, navel, nishizumi_miho, ocean, open_mouth, outdoors, red_bikini, sandals, school_bag, shadow, short_hair, side-tie_bikini_bottom, sky, smile, swimsuit, towel, umbrella, white_bikini, wind