Invading the Paranormal World Under the Codename Godslayer

When you keep dreaming about things that defy reality, do you ever wonder if you're sick?

But what if everything in your dreams really happened? What would you do?

When white blood cells detect foreign bacteria, they switch into expulsion and extermination mode, activating their own defensive mechanisms.

If an outsider suddenly appeared in a world, wouldn't the world also...