[hider=Njorne]

The chakra nature. Jiton. I don't really have any problem with you using this. But keep in mind that this kind of Kekkei Genkai is a combination of two (or more) chakra elements. My best guess would be Doton/Raiton with perhaps a little hint of Katon in there...

Background: “The other members of her father's group allegedly slayed her father as retribution for his heinous act...” 

Today: “Miyako has promised her mother if she ever comes across him in her travels he will pay for the crimes he committed...”

So... The guy who, as far as Miyako knows, has been dead for sixteen years will get what he deserves if she ever finds him. Please explain.

Also, not a big fan on the large scroll collection. It feels like your character sits on a lot of info that would not have been accessible to ninjas of other villages. Please tell us your intentions of this info. 

Skills and stuff... (yes, I know the hatter was on your case for this as well...)

Kekkei genkai
Poison specialist
Sensor.
Cat-like speed and agility.
Possible summoner.
Weapon specialist. (Yet no taijutsu techniques)
And genjutsu... (fairly powerful)

I don't know if you thought about this while writing, but this is a lot of stuff. You might be able to get away with half of it, but just barely. All of it? Don't see it. Please read the approved characters and see if you can find a suitable level for yours. 

Jutsus:
I like your jinton jutsus, they feel balanced and appropriate for their ranks. It'll be fun to see how they work out in the game. My only question is about your B-rank. You say that the technique can be used to generate a speed faster than people can run... Could you give us some more info on this?

The taijutsu part is a little thorn in my side. You have no jutsus there, and yet you claim the character is a specialist in this area. What's worse: “the massive disc-shaped ones that are completely round featuring a fully sharpened edge on all sides evenly which makes these impossible to wield by hand without resulting in self-harm”
So you're hurting yourself every time you use this weapon? Not counting you jiton here (because you have no jutsus that lets you fling shurikens without touching them), that sounds like the worst weapon ever designed. 

Apart from this I agree with what the hatter has said. Except I don't hugpansexuals... I don't find any kind of kitchen implement very arousing...
I think your problem is that you haven't quite grasped the concept we're looking for here. Please re-read the OP and the approved characters to get a handle on this.[/hider]

[hider=Hatter]
I really Can't find much to bitch about here. Mostly because she's been with us before and has been fixed so many times there's not really anything left to do. We even spend a good deal of an afternoon just talking about her A-rank, so even that's good in my book. [/hider]