Awhile ago, my Vice President of Anime Club at Hershey High School, Caleb Skelly, signed our club up for a contest hosted by Huke, the creator of Black★Rock Shooter. The contest's prize was the creation of a character that will be part of the official cast of Black★Rock Shooter; these characters represent the club itself. Our club was one of the five drawn as the winners. As a result, Black★Matagi was created. She looks really cool! So, since she was created to represent Hershey's Anime Club (and I'm the President), she is being displayed as my avatar and my ID.
If you want more information on her, here is the link to her page on the Black★Rock Shooter wiki: