4girls, azusa_(blue_archive), azusa_(swimsuit)_(blue_archive), bad_pixiv_id, ball, beachball, bikini, black_hair, blue_archive, breasts, cleavage, cloud, crusader_(tank), day, eyewear_on_head, food, frilled_bikini, frills, hair_ornament, hairband, halo, hifumi_(blue_archive), hifumi_(swimsuit)_(blue_archive), holding, holding_ball, innertube, jewelry, large_breasts, light_brown_hair, long_hair, low_twintails, marudeningen, mashiro_(blue_archive), mashiro_(swimsuit)_(blue_archive), military, military_vehicle, motor_vehicle, multiple_girls, necklace, ocean, open_mouth, outdoors, ponytail, popsicle, sand, sandals, short_hair, side-tie_bikini_bottom, sky, starfish, sunglasses, swimsuit, tank, tsurugi_(blue_archive), tsurugi_(swimsuit)_(blue_archive), twintails, very_long_hair, water, white_bikini, white_footwear, white_hairband, wings