1girl, aqua_eyes, aqua_hair, ass_visible_through_thighs, black_one-piece_swimsuit, breasts, competition_swimsuit, covered_navel, cowboy_shot, day, hair_ornament, hairclip, hand_on_own_hip, indoors, kantai_collection, long_hair, looking_at_viewer, medium_breasts, multicolored_clothes, multicolored_swimsuit, nitamako_(sakamalh), one-piece_swimsuit, pool, rei_no_pool, solo, suzuya_(kancolle), swimsuit, two-tone_swimsuit, water