oikomii, stay gold (umamusume), umamusume, highres, 1girl, :d, ?, airport security, alarm siren, animal ears, asymmetrical shirt, black pants, brown hair, coat, dagger, ear covers, goggles, goggles around neck, gradient hair, horse ears, horse girl, knife, multicolored hair, open mouth, pants, security checkpoint, sheath, sheathed, shirt, smile, solo, spoken question mark, walkthrough metal detector, weapon, white hair, white shirt, yellow coat