I've had this review sitting on my computer for a while, but didn't get to post it until you updated. So this is only going to be for the first chapter. I'll post this now and then read/review the next chapter when I'm not busy/tired.
You'll still want to change the size of the font. It's too small to be read comfortably. Or, on looking at what tags you use, remove the font tags so that the font is the default of the forums. That way you won't have to play around with the size tags.
And now, for grammar.
Pokémon warriors are humans that use a warrior pokéball.
If you're going to capitalize "Pokemon", then you should capitalize everything that goes along with it. Like "Poke Ball".
They can switch between half Pokémon and half human
"half
-Pokemon and half
-human"
I, Abra am one of them.
Missing a comma after "Abra".
Every day I sit here watching the normal, shiny, legendary or none
"None"? What does that mean?
*RING**RING*
*RING**RING*
Instead of writing out the phone's ringing, just say "The phone rang".
“Mmmm... Mom get the phone,” mumbled a girl with blond hair and clothes a bit too small for her.
When used in place of the name, "Mom" is capitalized. If you can replace "Mom" with the name of the character and the sentence still makes sense, then capitalize it. If not, then it's lower-cased.
You also missed the ending punctuation for the dialogue, which is a comma in this case, since you have a dialogue tag.
“Alright but you got to come down for your breakfast,” said a small Pichu wearing a jogging suit before she climbed along the branch to another hollow tree.
Same thing here. You need a comma after "breakfast".
Since this is a repeated mistake, I'll stop pointing them out. I'm sure you can fix this on your own.
She kneeled with her head almost reaching the ceiling; she looked down at the straw bed with a mattress underneath it.
You'll want to word this sentence so that it's clear which "she" you're talking about. You went from talking about the mother to talking about the girl, and you'll just want to note that it's the girl we're following now.
He is a third fatter then a normal Raichu,
Maybe "three-times fatter"? A third fatter doesn't make much sense to me.
The branch squeak as a fat Raichu in a vest runs across.
"squeaked”
The oversized Raichu ran across the branch as it sank towards the ground, he jumped near the end and landed inside the other hollow tree.
This should actually be two separate sentences. Turn the comma after “ground” into a full stop, and capitalize “he”.
“Hurry up it about to snap!”
It sounds better to have “hurry up” as its own sentence, with an exclamation point after it. Also “it” should be “it's” so the sentence flows better.
“This used to be easier when you were smaller” squeaked the Raichu;
That semi-colon should be a full stop.
The girl took it from his thick chubby paws and leant it against her ear.
“leaned”
As the girl hang up she began to smile.
“hung”
“Oh you can’t even forage to eat, yet you are going on a journey, you can’t even make a bed” mumbled the Pichu.
“You can't even make a bed” should be its own sentence, with a full stop after journey and a capital Y. Also, you're missing the punctuation after “bed”, which would be a comma in this case. You do this quite often in your story, which is why I didn't point out every instance.
“she doesn’t know the number”.
Missed capitalizing the “she” here.
“honey” sighed the Raichu, “you have 10 neighbours”
Missed capitalizing “honey” here, and I would also suggest writing out the word “ten”.
but did not stop packing apple until she stuffed a few Pichu sized clothes
It should be “apples” and “Pichu-sized” should be hyphenated like that.
That's all I'm going to point out for specifics on grammar. In general, I'll say that this needs a lot of clean-up. As I pointed out, you have a lot of missing punctuation, capitalization, and verb disagreements. The best thing to do would be to get a beta reader to go over this with you, so that your mistakes can be fixed and also pointed out to you before you post it.
As for the story itself, it
is cute. The parents' worry about their daughter entering the world when they all know she's not ready was fun to read. You do need some more information about how the world works to not lose readers. Like your introductory paragraph was rather confusing as I tried to understand just what a Pokémon warrior was. Also, there could be some more explanation as to the world the characters are living in, with specifics like how does a telephone work in their world? They would need some way of powering it. Little details like this add up to create a world real enough for your readers to “live in”.
Really all I can say on this chapter. There wasn't much characterization for me to write about, so I focused mainly on the grammar. If that gets cleaned up, then the story will be easier for others to read.
Hope this helps.