1girl, amatsukaze_(kancolle), arm_up, armpits, ball, beachball, bikini, blue_sky, blush, breasts, brown_hair, choker, day, hair_ornament, hair_tubes, holding, kantai_collection, long_hair, looking_at_viewer, navel, ocean, open_mouth, outdoors, partially_submerged, shiny_skin, side-tie_bikini_bottom, simple_background, sky, small_breasts, solo, stomach, swimsuit, takanashi_kei_(hitsujikan), twintails, water, wet, white_hair