Take it up with BREW. Maybe screaming at it for a while will make you feel better.

[Nanami steps back onto the ground in human form, tossing a lock of hair over her shoulder]

I did what I said I would. Our resonation is mediocre at best right now and you need to learn how to use a sword. Even if you don't use me, there are a lot of Weapons around who are swords so there's a good chance you'll be using one at some point. I can show you a couple of pointers but it'd be best to stop by the Weapons Handling Training area where they have two very competent swordsmanship teachers.