1girl, ass, back, bad_pixiv_id, black_hair, black_one-piece_swimsuit, blue_one-piece_swimsuit, breasts, character_name, competition_swimsuit, grey_eyes, hair_ornament, hairclip, kantai_collection, long_hair, looking_at_viewer, looking_back, medium_breasts, multicolored_clothes, multicolored_swimsuit, one-piece_swimsuit, oyashio_(kancolle), solo, swimsuit, tokiwa_senkei