1girl arm_at_side arm_up bag bangs black_blazer blazer blunt_bangs blush bow breasts closed_mouth collared_shirt cross_hair_ornament eyebrows_visible_through_hair girls_frontline greyscale hair_ornament hair_over_shoulder head_tilt highres hk416_(girls_frontline) jacket long_hair long_sleeves looking_at_viewer monochrome open_blazer open_clothes open_jacket school_bag school_uniform shirt shoulder_bag simple_background sleeve_cuffs solo tsurime upper_body ururu white_background white_hair white_shirt