Continent Adula, Holy Empire of Caria.
The Holy empire of Caria occupied all of the north of the continent and was exclusively human, every other race had been hunted to extinction. Even enslaving other races like the Makima empire was unacceptable to them.
Caria was the birthplace of the Eishin religion and had it as its official religion. They followed religion fanatically and believed in Eishin's teachings. Like the church, its view of magic was warped, placing the element of light above all other elements.
They had developed the light element to its limits, even the order of magic and the Makima empire couldn't match them when it came to researching the limits of the light element.
The Caria empire had implemented the element of light in all its national projects, from agriculture, civil construction, national defense, runesmithing research and obviously public health.