1boy, 1girl, :3, alarm siren, arm cannon, artist name, black dress, blood, blood on clothes, blood on face, blood on weapon, blush, border, borrowed character, closed mouth, colored skin, cosplay, crosshair pupils, desk, dress, fang, fang out, feet out of frame, goggles, grey skin, grin, gun, hair ribbon, hardhat, head rest, heart, helmet, heterochromia, joints, laughing, long hair, looking at viewer, multicolored ribbon, multiple views, ojou-sama pose, one eye closed, open mouth, overalls, personification, red background, red eyes, red hair, red shirt, ribbon, robot, robot girl, robot joints, school desk, sharp teeth, shirt, short sleeves, simple background, sitting, smile, smoke, smoking gun, teeth, thumbs up, upper body, v over eye, weapon, white border, wrench, yellow eyes