Absolute Anime

Okay so here is the deal.
My mom has been seeing this anime on TV in the USA recently and she thinks it looks neat and I should check it out.
I agreed but she couldn't remember the name or much about it, and I'm usually not around when it comes on.
She said that it has a 'weird title', so I'm thinking it must be a Japanese name.
She said there's a K in the title, not necessarily at the beginning.
She also said there is a blonde girl with a light voice in it too, and that's it.

So... could you please give me some suggestions as to what it might be, please?
Thanks much! <33
-Tori Lynn

Ohh, I forgot to say that she said the title only has 1 word in it.

Well it's a little hard knowing what it is with such little info.

Here is a list of anime that starts with K, dunno if it'll help though =|

http://www.animenewsnetwork.com.au/ency ... php?list=K

Hm.. this is a little hard ^^'
But I don't know.. maybe Karekano?

That's all I can think of right now XD