Celty Sturluson♀

Celty Sturluson, also known as "The Black Rider" or "The Headless Rider", is a fairy called a Dullahan, who came to Japan looking for her stolen head. Her motorcycle is actually a horse in disguise. Celty lives with Shinra Kishitani, and the two are romantically involved. She works as an underground courier. She wears a helmet when she goes out and communicates via a PDA. She enjoys online chatting, television and DVDs.

[from Wikipedia]