Busou Shinki Moon Angel is an ONA (Original Net Animation) published from September 7, 2011 to January 26, 2012. The anime consists of 10 episodes and each episode is less than 5 minutes. The story is not directly related to Busou Shinki TV Anime aired in 2012. In fact, the only relation between the two is the Shinki. I see no other relation than that.