masterpiece, best quality, 1girl, pretty girl, cute, looking at viewer, black hair, demon horns, long hair, ahoge, halo, black horns, red halo, tail, yellow eyes, demon tail, black tail, fang, small breasts black shorts, collared shirt, lab coat, shirt tucked in, looking at viewer, smile, simple background, white coat, open mouth, blush, leaning forward, head tilt, blush, upper body, smile, looking at viewer, cowboy shot,

lowres, worst quality, bad quality,