Pokemon mystery dungeon: explorers of the cosmic realm

Lester used to be a human until lance the riolu tried to destroy the Pokemon world until Lester stopped Him and blocked the star as he accidentally said his wish as the star glow soon he disappeared.

Lester woke up in the Pokemon world but however he noticed he apperence as riolu as he soon realised that he turn into a Pokemon as his memory were blurry as he explored the world.