Pokemon Ash & Pikachu

I feel so sad. Ash and Pikachu are no longer the main characters of the Pokemon series and there will be a new main character/main pokemon. It's nice that they're branching out but that's it for all of the old characters including team rocket. In a recent episode Ash met back up with his Butterfree Pokemon that he let free. I feel happy and sad at the same time I kind of wished that Ash and Pikachu would be aiming to catch all of the Pokemon forever but the series needed to end of expand in some way. It's been a good 26yr run pokemon is one of my favorite series/franchises.