Oddly enough I've only seen only a bit of this very popular series and the little I've seen easily begs for more. Of course I have almost all the figures since practically every figure that comes out of Kanu, Sonsaku, Ryomou Shimei, and Ryofu Housen are the top sellers for obvious reasons. This anime has probably caused the most nosebleeds with the enormous amount of almost-hentai fan service. Great Guardians is the name of the new third season coming out in a few months and there will be more characters, fighting and panty shots. More info at Anime News Network
and also at DannyChoo.com.