Juurin Oukoku - Elf Oukoku wa Kyodai Naedoko ni

The Eld Kingdom, a thousand-year-old realm ruled by elves, is suddenly invaded by a massive army of orcs.
The Orc King’s goal? To impregnate the elven women one after another, turning them into breeding stock and subjecting them to every form of humiliation imaginable.

Princess Clarice and her royal guard, Leona, barely manage to escape.
But after blinding the Orc King in one eye, they’ve earned his wrath—and now they’re being hunted.

[Translated from dlsite]