1girl armband artist_name bangs black_headwear black_jacket black_shirt black_skirt blue_archive blush book book_to_mouth commentary_request grey_eyes hair_between_eyes halo hand_up hat highres holding holding_book iroha_(blue_archive) jacket long_hair long_sleeves looking_at_viewer military military_hat military_uniform necktie open_clothes open_jacket peaked_cap red_hair red_necktie safety_pin shirt signature skirt sleeves_past_wrists smile solo tyone uniform very_long_hair