Bolded corrections
Since they aren't proper nouns and the people are not being referred to with those terms they remain lower cased.
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Instead of quoting them all, here will be an explanation, I've seen a lot of your grammar improve, but you capitalize things that really do not need to be, and I guess it's good that you're trying to be sure, but here are a list of things that do not need capitalization unless some person, place, or thing is being called it.
trainer
coordinator
gym leader
champion of (insert region here [unless again you someone is calling someone the Champion Of "Region"]) -
"How does that make you feel, Champion of Hoenn?"
I hope you get my point.
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One other question I have, do you just type your story straight into the Quick Reply box? You should be typing your story inside of a word processing program (preferably Microsoft Word or Microsoft Works Word Processor) A.) You have an idea of how long your story is up to that point and B.) You also have the help of spell check, though I must say that it does pick up everything so make sure that you proof-read, at least twice, if not even a third or fourth time!!!
Okay so that's it for this review, but I'm liking the mystery behind all this, and I'm glad to see that Mickey has some concerns and isn't just going along all trolly lolly laa without some concern, though it does seem a bit odd for the mayor of the city to pick up two random kids...but still, I'm liking it, and I want to see what you're going to do with the plot!