The Incubus King of Holy Sword Academy

The protagonist, Christopher Soderholm, was an incubus living in hiding as the son of a nobleman on the northern frontier. However, his father, Baron Ixel, is revealed to the church to be a demon, and dispatched forces to destroy him. After Baron Ixel is killed, Christopher enrolled at the Yggdrasil Holy Sword Academy through the arrangement of his guardian, the Frontier Count. Christopher decides to gather people, goods, and gold, aiming to create his own kingdom in accordance with Ixel’s last words to him.