Alexis, son of a duke in the Kingdom of Light, is a Radiance Mage.
On the day he comes of age, the Holy Court razes his home and exterminates his family on the grounds that they are "colluding with monsters." Only while fleeing does he learn the truth: his mother is a monster, and he is half-monster himself.
Cast out by the human world, he wanders into the world of monsters and leads the weaker demi-humans in founding an empire.
When a human army invades and his people are slaughtered, he single-handedly wipes out hundreds of thousands of enemy soldiers. Their vengeful spirits surge into his heart, awakening the Demon King seed that has lain dormant within him.
From Radiance Mage to Necromancer, from sunny young man to king burdened with vengeful spirits.
The ones he must lay to rest are the enemies he killed with his own hands.
