aruka_(alka_p1), commentary_request, 1girl, armpits, bare_shoulders, belt, black_thighhighs, blush, cape, detached_sleeves, hat, long_sleeves, looking_at_viewer, open_mouth, purple_eyes, purple_hair, salute, short_hair, smile, solo, thighhighs, helena_blavatsky_(fate), helena_blavatsky_(third_ascension)_(fate), fate/grand_order, fate_(series), year_2017, 