hase yu, nyano, original, 1girl, animal ears, bare shoulders, black hair, blush, brown eyes, brown hair, cat ears, cat tail, computer, computer keyboard, fang, female focus, flat chest, glasses, green eyes, green hair, gun, handgun, laboratory, left-handed, matching hair/eyes, midair, milestone celebration, navel, outstretched arm, outstretched hand, revolver, sandals, short hair, skirt, smile, solo, strap slip, tail, weapon, wings