J a pokemon fanfiction

Meet J. Thats his name J. He gave himself that name as no one knows whonthe real him is. J is a pokémon trainer/co-ordinator/breeder.
He is well known around the world to have never lost any battles or contests but he never participated in the main events like the leagues or contests.
But that isn't only what he is known for as he is also known to be able to speak and understand Pokémon like they spoke English.
Well that is until he meets Ash, Brock and Dawn.
Will they find out who the rwal J is or will it be kept a secret.
Join J for his journey around the Sinnoh region.

Edit: I have changed the title so Ye!