1girl, black_hair, blush, breasts, competition_swimsuit, covered_navel, cowboy_shot, dated, grey_eyes, hayasui_(kancolle), jacket, kantai_collection, large_breasts, looking_at_viewer, montemasa, one-piece_swimsuit, open_mouth, short_hair, simple_background, smile, solo, swimsuit, swimsuit_under_clothes, track_jacket, twitter_username, white_background, zipper