This is the story of a 24-year-old man named Ash who transmigrated into the world of Eldros, where he became an altar owner in this world. A world where every altar owner has to fight with monsters and beasts to protect his altar and city.
Here, war with monsters is like breathing air; one mistake can make Ash lose his life, and his body will become a mindless monster attacking other living beings.
He will try everything to survive and defend his city and to grow his power and city to become the top existence in this universe.

Tags
kingdom, kingdom building, level system, system, loyal subordinates, magic, magic beasts, survival, transmigration, weak to strong, action, fantasy, war, military, army, army building, ruling class, progression, strategy, male leads.