1girl, black_headwear, black_jacket, blush, closed_mouth, embarrassed, fingernails, flying_sweatdrops, grey_background, grey_hair, hands_up, happy_birthday, hat, jacket, kuromorimine_military_uniform, long_sleeves, looking_at_viewer, medium_hair, military, military_hat, military_uniform, nail_polish, simple_background, solo, uniform, upper_body, white_nails