Hi guys! I'm back! Sorry is I wasn't on.
So, this is Charlotte. A Sweet Witch from an anime called "Mahou Shouju Madoka Magica"
She is harmless...unless if someone harms, her, she turns into a giant black worm. You can see her here. http://www.youtube.com/watch?v=o4yMLd5_V_I (Beware! She eats a **** in the video)
Credit to Caramellstar51