1girl, ahoge, asimo_(hakurei10201), aviator_sunglasses, bad_pixiv_id, black_skirt, blazer, breasts, closed_mouth, eyewear_on_head, girls'_frontline, greyscale, jacket, large_breasts, long_hair, looking_to_the_side, m1918_(girls'_frontline), monochrome, necktie, pleated_skirt, skirt, solo, sunglasses, thighhighs