Okay, several things...
First off, you SERIOUSLY need to use better grammar. I could overlook it if this was a pure game, meaning story wouldn't matter as much, but in a story driven flash like this, it's a pretty big deal. Start spacing and using periods where they belong instead of commas. It takes not even 10 minutes to do and doesn't rape the viewer's eyes. On top of that, dialouge can be kind of out of place. Something tells me in the age of FE, they wouldn't be saying slang like "gotta"
Second, you REALLY need to be more original with names. All you do is either distort names from FE/History and it's painfully obvious "Adolfo Zitler? Marf, as in Marth from SSB OMG LAWL?" So yeah, work on creativity, too.
Gameplay, meh, can't offer anything, maybe a limit break system?
...Sound, fix that, seriously. The recruitment theme for battle? Um, what were you thinking? Try to pick something RESEMBLING battle music. And the Smash Brothers sound effects at the end of a battle are VASTLY out of place, take that out. Victory fanfares, the level up jingle from FE, I don't care, just lose the cheering. Seriously. That has to go.
Overall, plot is pretty good, but, like I said, suffers since the text is so annoying to read.
There's some potential here, and I'll admit I was expecting a LOT worse, but it needs a ton of polish.