After completing the Animagus transformation, Harry falls into a deep sleep from which he would not wake up so early.

Without anyone noticing, slowly Harry's magic was being released, causing several changes in worldly animals. These changes have attracted the attention and curiosity of Muggle-borns who have to devote to the study of these new animals. Several half-bloods also "migrated" to the Muggle world to learn about the animals' muggles-and-not-yet ".

The pure-bloods, wanting to maintain their "purity" now only marry other magical until there were no more, as muggleborns now no longer exists, born with aura rather than magic.

It is in this scenario where Harry awake, even 15 years -taking defeated Voldemort cemitério- not knowing what the hell was going on, or what are these "Pokemon" that everyone talks about.