You are a demon lord, a powerful king of demons, you've lived your life in your lair while causing havoc in the human realm. But today, on a rainy day, a young boy, has stepped into your lair... Mortals can't come inside, how did he get here?

U-um...

The boy stuttered, it seems like he didn't know that he walked inside the demon's lair, he couldn't see after all.

But you, the demon king and him, the blind boy, didn't know that he had the power to kill you.