Levi Ackerman hates singing, but unfortunately everyone else in the world won't stop. You see, everyone has a soulmate. Have you ever had a song stuck in your head? Well, that means somewhere out there your soulmate is singing. All anyone wants to do is find their soulmate, but not Levi, he has better things to do. That is, until one fateful day while he is murmuring a song to himself, he notices a certain brunette doing the same. <I do not own Attack on Titan or the characters, only the plot for this fan fiction> Will contain lots of fluff, and some lemon/smut. ((Maybe))

It was a normal day for sonic, till he got hit with a laser gun and turned into....a....toddler? Now tails need to make a machine to change him back, but who will take care of sonic, well the only other hedgehog able to keep up with him....yes shadow. Come read the adventure of sonic and shadow and there brotherly bond. Will sonic survive?