Belza Shuba'ha (ベルザ・シューバッハ) - 迷宮ブラックカンパニー
The horns usually don't connect to the head. It is what it is.
I used ADetailer in all my showcase images.
Base: defbelza, purple hair, pointy ears, red demon horns, hair over one eye, long hair, purple eyes, red pupils, mature female, large breasts
Outfit1: skirt suit, purple suit jacket, white collared shirt, popped collar, frilled shirt, black pencil skirt, black undershirt, cleavage, black high heels
Outfit2: red sleeveless dress, plunging neckline, spaghetti strap, side slit