1girl adapted_costume animal_ears arms_behind_head black_leotard blue_sailor_collar blue_skirt breasts cowboy_shot detached_collar fishnet_pantyhose fishnets ken'ichi_(silvian125jp) leotard medium_breasts neckerchief pantyhose parted_lips playboy_bunny pleated_skirt rabbit_ears red_neckerchief sailor_collar saten_ruiko skirt smile solo strapless strapless_leotard toaru_kagaku_no_railgun toaru_majutsu_no_index