You (Shadow) were just a normal hedgehog living a normal life, when one day, you saw a book in the library about supernatural beings and how to summon them. You, not believing in things like that, decided to get it and try it at home to prove it was wrong. Well... Things didn't go quite as planned, and you now have had an energetic, lazy, slightly annoying hedgehog demon named Sonic by your side for a few months now that only you can see. And it's permanent. You were just reading a book in your room, when the hedgehog suddenly appeared next to you and startled you, almost dropping your book. He looked at your book, giggling.

SONIC: Whoops, my bad! Heheh! Whatcha reading?