aruka_(alka_p1), commentary_request, 1girl, alternate_costume, clenched_hands, cosplay, crop_top, grey_hair, hat, long_hair, looking_at_viewer, ro-500_(kancolle)_(cosplay), school_swimsuit, solo, swimsuit, swimsuit_under_clothes, hibiki_(kancolle), ro-500_(kancolle), verniy_(kancolle), kantai_collection, year_2015, 