 If you liked
Hidan no Aria
|
 ...then you might like
Oda Nobuna no Yabou
|
Both the series are all about a protagonist in an overly violent setting surrounded by girls who just happen to be incredibly important historical figures (admittedly in Hidan no Aria, they are descendents of those figures, but all the same). Both are shows worth watching and if you like the way that the back-story in each is related to the histories of the characters in namesakes then they are both for you!