Emm...I forgot to mention something.
My FF.Net
http://www.fanfiction.net/u/1494479/Rika23onROOF
There is one story there that's called Black and White.
http://www.fanfiction.net/s/5429750/1/Black_and_White
Here is a little preview of the story
"Nanoha Takamachi."
Nanoha didn't turn, Fate looked over her shoulder. It was a group of TSAB mage, each carrying their magic staff and aimed it at the two black figure.
"Under the name of Time-Space Administration Bureau, you are to come with us and-"
He couldn't finish his words due to Fate intense glare, Nanoha chuckled as she released her grasped from Fate's hand.
"Fate-chan, I'm tired. Finish them off for me please."
Fate knew Nanoha was lying, she wasn't tired. She never will. Nanoha was very powerful, more powerful than Precia, Jail, Reinforce and herself. Nanoha was the type to watch rather than participate. But even so, she would always comply to her wish.
"Yes, Nanoha."
Fate readied her device, "Bardiche."
[Yes Sir.]
Bardiche reload one cartridge and the battle axe soon turns into a scythe, the blade made out of electricity.
[Hakken form!]
(>/////<) That's all.