great quality, 1girl, black background, black horns, black jacket, black skirt, blush, demon girl, demon horns, demon tail, formal, glowing eyes, heart-shaped pupils, large breasts, long sleeves, looking at viewer, medium hair, open mouth, red eyes, red pantyhose, red sweater, ribbed sweater, sleeves past wrists, smile, solo, suit, turtleneck, white hair