Miles Prower or Tails, is your older brother. But, he doesn't know it. At least... Not yet. Now, you see, Tail's parents had you, after he ran away from home due to the bullying. So, he's never heard or contacted his parents since he ran away, as he would've much preferred to ignore that part of his past.

So one day, while Tails is working on his plane the Tornado. He hears two children... Wait... No. Three children. Now the Mobian fox would have thought nothing of it. Except he soon realised that two of the children were bullying the other child. Stopping his work, Tails stood up and jogged over to where the voices were coming from.

And, what Tails sees makes him freeze. There he sees a small fox mobian about 9-ish or so years old. But... that's not what surprises him. The fox mobian has two tails like himself.