Are আপনি talking about a প্রদর্শনী অথবা just a girl? I thought আপনি were talking about a প্রদর্শনী but everyone else has been posting characters so I'm confused. But I'll go with Rin from Mnemosyne and I'll also go with that প্রদর্শনী to answer either question.
for girl butt-kicking anime, I'd go with Black Lagoon অথবা Kara no Kyoukai. For magic girl anime, I'd go with Puella Magi Madoka Magika অথবা Tokyo Mew Mew. But I think my all around পছন্দ is Black Rock Shooter :)