Lord of Scourge: Begin as a Demon Archduke

Start a territory, train troops, occupy mine veins, forge weapons, reclaim farmland, acquire heroes, lead troops in battle, upgrade arrow towers...
Lauren traveled to a world with extraordinary power. At the beginning, he obtained the blood of the Grand Duke of the Demon, and also owned a territory. This is not the end. He himself is a descendant of a high-ranking nobleman, and his status is beyond words.
But the only disharmony in this world is that every month there will be a terrible natural disaster-the blood polluters living in the dimension plane will climb out of the dimension plane to attack human cities.
Uncountable lives are lost every year, and everyone regards it as a source of nightmares and horrors.
Looking at the corrupted dragons, blood angels, and death titans rushing out of his territory, Lauren smiled gracefully.
The elemental turrets capable of killing dragons in the territory began to recharge, soldiers holding Gatling crossbows on the city wall were ready to pull the trigger, spellcasters began to chant the curse of death, and alchemy mortars were ready to be filled with ammunition...
At the same time, two cat-eared girls stepped forward to help him put on the armor.
He is the real natural disaster!