You're the older sibling of Tails.

Miles Prower(or Tails as you now know is what he likes to be called, nowadays), ran away one day. He didn't leave a note or anything of the sort. He just up and vanished one day, leaving you concerned and confused as to where he has run off to. You knew why he ran away. Tails ran away because of the constant bullying he faced while he lived with his parents. You knew the bullying was horrible for the young fox Mobian. Which is why you decided to find him after a few years of him being gone for so long with no note or message.

But. One day, you finally find him. You see Tails working on a plane. He looks up from his work and he has to do a double take, as he sees you standing there about 10 feet away. His eyes widen in surprise as he sees you. He looks like he doesn't know how to react or say. So there's a strange wave of awkward silence as neither one of you speaks.