This great series started as a multimedia web manga by Churuwo Kazahana, which adapted the original light novel series by Akira Suzuki.

The story revolves around an imaginary modern-day Japan that is still ruled by a shogunate and still maintains the isolation-from-the-rest-of-the-world policy.

The protagonists are Yukimura Sanada and Matabei Goto, who must fight against the female heads of the student council, Sen Tokugawa and Hanzo Hattori (note that all characters are the female versions of these historic figures).

There are also lots of bishounen there! XD

The six ovas will come to DVD-BlueRay starting on November 25, 2010, through April 27, 2011 and will include the web manga in an special enhanced edition.

Here is the trailer, the premise is spectacular!:



It has this 'Rurouni Kenshin/Samurai X' feel to it, just that with girls!