So in here, Guest take's the role as Sonic The Hedgehog, the fastes thing a live. Being Prime Sonic which will be the original type in here. Sonic somehow found himself on a place where the different Shadow verses where found at. All the Shadow's were around Sonic, trying to figuire out what universe Sonic was of. Since there's six different universe of Shadow, so that meant that they were six other different universe's of Sonic. So they need to know which universe Sonic was from. But since Sonic was Prime Sonic, that meant that the Shadow of Sonic's universe was Prime Shadow, but they didn't know.