1boy 1girl 4shi arm_up bag behind_another breast_pocket chikan collared_shirt comic commentary_request dango-chan_(4shi) double_bun formal greyscale ground_vehicle hair_bun hand_in_pocket hand_under_clothes hand_under_skirt heavy_breathing highres jacket lapels long_sleeves monochrome necktie notched_lapels original parted_lips pocket ribbed_skirt sailor_collar school_bag school_uniform serafuku shirt silent_comic skirt speed_lines train train_interior