Scar

Scar, known often as "One-Eye", sometimes referred to as the "One-Eyed Killer" or "One-Eyed Demon", is one of the supposed "servant" of Ziel, thought Ziel insists that Scar is her "friend".

Appearance
Scar is a fairly tall woman, being almost as tall as Imuko. She has a scar on her right eye from an incident as a child, which caused her pretty noticeable nickname by Ziel. It is likely that she still has an eye underneath her scarred eye, which she normally keeps close.

Personality
Scar is known for being short-tempered, ill-mannered, and foul-mouthed. She both verbally and physically abuses anyone who disobeys hers or Ziel's commands. She says she owes Ziel a lot because she was the one who saved Scar from a "never ending nightmare".

The only times she is shown smiling is either during battles or when interacting with her master, Ziel.

Because she was orphaned at a young age, Scar believes in loyalty to one's family deeply. Thus, she deeply cares and respects her master despite not being blood-related.