Saber (Fate/Extra CCC Fox Tail)

Saber (セイバー) appears in Fate/Extra CCC Fox Tail as a rival against Caster.

Appearance
Saber looks similar to Caster. She has the ability to transform to a human.

Personality
She refers to her Master as her boyfriend.

Development
Saber was cut from the development of Fate/Extra CCC. Takashi Takeuchi wished to finish the design, and she was placed into the manga as a character.

Fate/Extra CCC Fox Tail
The unknown Servant is a female who uses a Japanese sword that is able to be launched at the opponent and flies back to her automatically after leaving a large hole in the opponent's chest. It floats by her hand without her needing to grasp it. They kill Kirei Kotomine, Monji Gatou, Kiara Sessyoin, and Caster. She and her Master work for BB.

She later attacks Caster and Hakuno Kishinami in the Sakura Labyrinth.