Durarara!

Celty is a Dullahan - a being from Celtic lore who guides souls to the afterlife. One day she wakes up to find her head is missing. She remembers her name but not much else. She still feels a faint connection to her head and travels to Japan to find it. Celty wears an all black biker jumpsuit which is made from a shadow-like substance that materializes around her at her will. She also wears a yellow and blue helmet that vaguely resembles the shape of a cat's head. Celty tends to avoid most...