kotatsu-mazoku, yoshida yuuko, machikado mazoku, commentary request, highres, 1girl, :d, ahoge, bare arms, bare shoulders, blue dress, blush, brown eyes, brown hair, brown horns, curled horns, demon girl, demon horns, demon tail, dot nose, double-parted bangs, dress, fang, hair between eyes, hand up, horns, long hair, looking at viewer, open mouth, simple background, skin fang, sleeveless, sleeveless dress, smile, solo, sparkle, tail, upper body, v-shaped eyebrows, white background