Can someone tell me what anime this is?

[~Cross Marian~]

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Have seen her pretty often now and people use her as avatar everywhere.
So who is she and what anime is it?

 

[TheKidOfZero]

Black rock star shooter. something like that

 

[Kazamori]

There's only 1 OVA. Just google Black Rock Shooter and you will know what originaly it is.

 

[-Tauburn-]

the anime is on animefreak.tv

 

[~Cross Marian~]

Ok, thanks everyone ^^

 

[Uchiha Riyo]

looks girly