The Black Card

It doesn't take much effort for Clare to quickly complete her job and so Clare and Raki are off while she waits for another job. A strange man from the organization comes to give Clare a new set of clothes but not only that, he also gives Clare a "Black Card". What does this Black Card mean to Clare. Raki later has an encounter with the same man from the organization, who explains to him exactly what Claymores are (half human, half Yoma).