Erm. Strange request.
Basically, if you watched it, you got Bee Train's very VERY messed up version. They made two seasons since CLAMP (the original writers) cancelled the third one BT were supposed to make. The anime is not the real story at all. Read the manga if you want the real story.
Alternatively, watched the three short movies (named Tsubasa Tokyo Revelations), made by Production I.G (or is it G.I - I can never remember), which are incredibly faithful to the story. Of course, the shorts don't cover the whole story, and they're not all out yet, but they cover the major plot-twist, and from there you can be hooked enough the read the manga.
Here's the OP and ED of the Tokyo Revelations shorts:
Thread 47603