I Rely on the Hero Castle to Be Crowned the Holy Pope of Light

Transmigrating into the Western fantasy continent of Oran, he becomes a lowly servant in a noble family, his mother as humble as dust. When they are convicted and exiled to the frozen wasteland of the North, he activates the invincible human castle buried in the snow at the brink of death. He unlocks the hidden class of Light Priest, never before seen on the continent. Summoning farmers, training soldiers, forging knights, and calling angels, he heals the people with holy light and purifies darkness with divine magic. He establishes temples, spreads the faith, and builds the supreme Holy See of Light. He conquers the North, destroys kingdoms, sweeps away alien races, and resists the demons of the abyss. From a mere ant in the North to the supreme pope wielding divine authority, from a castle lord to founding the Holy Light Roland Empire spanning the entire Western continent. Wherever the holy light shines, it is his land; wherever faith reaches, it is his people.