1girl, ass, blush, bra, breasts, brown_eyes, brown_hair, gertrud_barkhorn, hair_ribbon, large_breasts, long_hair, looking_at_viewer, looking_back, nanashino, open_mouth, panties, ribbon, simple_background, solo, strike_witches, twintails, underwear, white_background, white_bra, white_panties, world_witches_series