1girl, ass, bare_arms, bare_legs, bare_shoulders, barefoot, black_eyes, black_hair, closed_mouth, competition_swimsuit, from_behind, full_body, groin, houshou_(kancolle), kantai_collection, koruri, long_hair, looking_at_viewer, multiple_views, one-piece_swimsuit, open_mouth, ponytail, racerback, simple_background, smile, swimsuit, twitter_username, wet, wet_clothes, wet_swimsuit, white_background, white_one-piece_swimsuit