ITT Sanae from Sumomomo momomo! ^^
I'm pretty sure this is her, though from the manga design not the anime (pic is from January 2006, so way before the anime)
bump
Finally, someone is fulfilling my request for Sanae Nakajima. All I have are a few doujins of her from Bloodfer's site. I know Momoko and Iroha aren't allowed because of loli content. Too bad Square Enix ended the show abruptly with only 22 episodes. Anyone know where can I find the manga? This is just as good as Ranma 1/2 and it does present some historical aspects of the 12 martial art families based on the Chinese zodiac.