2girls, arknights, arm_behind_back, arm_strap, bandeau, bangle, bare_shoulders, bikini, black_bikini, black_choker, blue_eyes, blue_hair, blue_sky, blurry, blurry_background, bracelet, breasts, choker, cleavage, cloud, collarbone, criss-cross_halter, day, fiammetta_(arknights), halterneck, hand_up, horns, innertube, jewelry, long_hair, looking_at_viewer, mostima_(arknights), multiple_girls, navel, o-ring, o-ring_bikini, ocean, outdoors, pointy_hair, railing, red_eyes, red_hair, short_hair, sky, smile, srf_feng, stomach, swimsuit, upper_body, white_bikini