original, highres, 1girl, 3others, black eyes, black hair, blood, bloody weapon, blue serafuku, blue shirt, blue skirt, breast pocket, elevator, eyeball hair ornament, green hair, grey eyes, hair over one eye, holding, holding knife, knife, layered sleeves, letter, long sleeves, multiple others, neckerchief, no mouth, pleated skirt, pocket, pointing, postbox (outgoing mail), red neckerchief, ringed eyes, sabashime botan, school uniform, serafuku, shirt, short over long sleeves, short sleeves, skirt, standing, surreal, weapon