a6m_zero aircraft airplane ass black_legwear blonde_hair blue_eyes brown_eyes brown_hair cockpit duplicate eila_ilmatar_juutilainen erica_hartmann gertrud_barkhorn green_eyes minna-dietlinde_wilcke miyafuji_yoshika multiple_girls neuroi neuroi_girl no_panties no_pants open_cockpit panties pantyhose red_hair sanya_v_litvyak silver_hair strike_witches swimsuit swimsuit_under_clothes terao_hiroyuki underwear upskirt white_legwear world_witches_series