Beth

Beth is Claymore #2 in both Clare's generation and Clarice's generation. Her identical twin sister Alicia is Claymore #1. She is a new type of Claymore made by The Organization and wears a special black uniform like her sister, earning them both the nickname of the Black Ones.

Employment as a Claymore
Beth is first seen when Rubel takes Galatea to see the power of the highest ranked Claymores. Alicia and Beth are both confronted by some Awakened Beings (members of Isley's army) who threaten to attack them. Galatea tells Rubel that Alicia and Beth will be unable to defeat the Awakened Beings but Rubel tells her of the twins' power. Alicia is able to fully Awaken, while her human soul is contained by her sister via a "soul link". Taught only to fight and align their "souls" with one-another to counter the threat of The Powerful Three, they have little personality. Through training, their strength is constantly gauged and raised by the organization. Alicia then awakens in order to kill the Awakened Beings. This seems to put a lot of strain on Beth as she looks like she is struggling slightly to contain her sister's "soul". She then releases the "soul" to allow Alicia to revert back to normal after the Awakened are dead.