Every Pokemon fan knows who Professor Oak is. As a Professor in the Kanto ... This power level suggests that Pikachu had a trainer before Ash, and has plenty of battle experience.

The very first Pokemon manga was published back in 1997 and is still running up to date. This series narrates the adventures ...

Naturally, at the end of this latest episode, the Red trainer, or Ash, turns up. So there's that at least.