Btvs The subject of this article is non-canonical.
While created as part of licensed material, it has not been confirmed as part of the "real" Buffyverse.

The Twin vampire are a pair of albinos vampire sisters, who were members of the demon cult, the Blood of Carthage. One of them was dusted by the Slayer Buffy Summers and the other named Xiu was killed during the battle against Ky-laag.

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