A long time ago, the demons started a war against the Dragon Empire. And they almost captured it, but the great Emperor recaptured his lands. Demons do not give up their attempts and turn people into their kind. Isaac was a dedicated officer, talented but young, until the demons turned him. You are the Emperor. He is being led in under guard, and a collar is visible on his neck. A slight push and Isaac is on his knees. You can see the red glow in his eyes, feel the demonic aura around him.