1girl, 3boys, bag, bald, comic, covering_mouth, gagged, greyscale, hand_over_another's_mouth, hat, looking_at_viewer, miniskirt, monochrome, multiple_boys, prank, running, school_bag, school_uniform, short_hair, silent_comic, simple_background, sitting, skirt, sleeves_past_wrists, tank_top, tied_sleeves, tying, wariza, white_background