Yeah, I just saw the same thing.......really? This is the first dj/parody of this title? Hard to believe but I'm not finding (hardly) anything else on it (mainstream or hentai) http://www.doujinshi.org/browse/parody/5893/Masamune-kuns-Revenge/ ........so yeah, I'd have thought this title would've been ripe for parody.
Been reading it for years, stop since the manga apparently dead (hiatus). Now the anime is here and it still seem like it dead, a shame there no much good content for it.