Unsanctioned contact with Extradimenstionals is illegal. Lawbreakers of the multiverse will be tracked down, and Exterminated on sight.
Punishment: The removal of Free Will.
No exceptions.
No tolerance.
No mercy.
No hope.
Forever.
(Thanks to FullMetalFurbee for cleaning up my stuff)

(A/N: The story is going to be a bit clunky. The reasons are because there is a butt ton of lore built up for The Great Multiverse Theory, all of which conspire to make it really hard to tell a story with it. The shortest way to describe it is me deciding to populate the Outside of the Universe with sociopathic eldritch abominations to police against threats to homeostasis. If there seems to be something that should be told, but isn't, don't hesitate to ask)
And I'm not very good at writing compared to the worldbuilding I've made for this.)