Hmm...it is quite impressive. And to see the Kyuubi's motherly side? Interesting.
But really you should give her a name, as we all know that kyuubi is more of a title. Obviously, she would tell her real name to the girl she sees as her daughter, no?
Shisui and Itachi! I just love them! It was quite funny seeing(or imagining) them cowering from Naru's wrath. Haha best part yet.
one thing that bothers me is...she's formal. Like way too formal? I mean yeah, this is your fic and you can write it the way you like but I just can't see Naruto being that formal (female or not) expect on certain occasions. I mean no offence really. It was written...well (except a few mistakes which can be ignored. ) And her personality fit in the fic so I don't really mind as long as there are moments were she shows the prankster side of her. That would be interesting. (Even though sadistic Naru is good, what's an Uzumaki Naruto without pranks?)
But you do that or not is upto you of course. You're the author ane all.
That's all I have to say. I think.

hmm.. not bad! i'll read it, so update soon.

Are you going further :D

i hate sakura but a have to uset
"CHANARO THAT IS AMAIZING"

at least sasuke not a jerk...

for being your first story you have a good idea of what to write and how to write it ;) you have writtena awesome fighting scene and we have seen who she got the moniker of bloody fang! hope you will introduce dear kashi in the next chapter!
see you in the next update! ;)

Great story keep writing please

Hi dearie! :)
I love kakafemnaru so i was delighted when i have seen your story! Good grammatic and every flows together very well! :) hope to see an update soon! Giulia