Laaaaaaaaaaaaaaaaaaaaaaaaaash <3 I decided to review your story, but I only have the brain energy for the prologue.
At least you're devoting more time to the characters' home life than just rushing them out the door with Pokemon in hand. I'll keep the more plot/character-related comments for now, since that's the start of the fic. I'll see where everything goes.
There are quite a few typos all over your prologue, though. For example, you seem to always miss putting the apostrophe in possessive words. If you read through your prologue, you'll see all the possessive words that you typoed, since they're just plurals now.
Another big grammar thing that I noticed concerns dialogue. I'll show what I mean with an example.
But, if you instead had:
Same thing here:
By the way, you capitalize "Mom" or "Grandpa" or "Professor" if you're using the title in place of the character's name. The other times it's written in lower-case.
I think that was all that I noticed for sure. If you just keep these little grammar things in mind while writing or proof-reading, you'll be fine.
Hope this helps!