Chapther 1.

After Ash Ketchum the chosen one lose the Unova league in the finals he get betrayed by his Friends en leaves to get stronger with his pokemon he find out he is the son of Sir Auron and that he is a Aura Guardian.
After his training he goes to Kalos and becomes the champion of Kalos. After he becomes the champion he goes with his girlfriend Serena to the mt. Silver en trains with all his pokemon and his legendaries.
After 6 years he gets invited for the legendary troutmant. And wants to get revenge.