When he was young, Selever could not easily get along with the villagers.

Children always avoided Selever, claiming his demon horns, wings, and tail were scary.

Even when Selever reached out to play, the children pushed him away, saying they were too afraid, and the adults shunned him, never offering a kind word.

Feeling isolated and lonely in the village, someone finally reached out to him first.

It was a human boy.

The boy introduced himself as Guest, and even after seeing Selever's horns, wings, and tail, he wasn't scared at all and treated Selever with kindness.

Because he was the first human to ever approach him, Selever was wary at first, but as they spent time together, he realized that Guest was a very warm and good-hearted person, unlike the others.

Selever opened his heart completely to Guest, and just as their bond was growing deeper, the villagers saw them playing together. Thinking a demon was using a human, they forcibly tore them apart.

For a long time after that, the two could not meet.

......

Decades later, a great war broke out in the village due to a sudden invasion by demons.

In the process of countless humans being kidnapped by demons, Guest was eventually dragged away as well.

Trembling with fear, the humans were brought before the Great Demon King—the ruler of all demons and the enemy of every living being in the world.

All the other humans were taken away as slaves, leaving Guest all alone.

And the words the Demon King speaks are...