Kuusen Madoushi Kouhosei no Kyoukan

I am in the middle of watching the anime and like the story. Protagonist is labeled a traitor and his old flame is discusted with him. Then he is tasked with training three misfits. 7 EPs in and love it. Knowing I only have 6 EPs left I now look for the source material, but Baka-Tsuki has been slapped with a DMCA for this title. I found volume one but nothing else. I know this has been posted in the past with less than stellar responses. However does anyone know if anyone picked this up or is there a site that has good summaries? Any help is greatly appreciated. Also, how many LN's were adapted and what was the quality of the adaptation?