One of the few potential slayers the Buffy the Vampire Slayer focuses on in the seventh season. Chao-Ahn doesn't know English, but somehow survives all the way up until the final battle erupts in the hell mouth. Her fate is yet unknown after the Implosion of Sunnydale. Chao-Ahn is commonly used as comedy relief for the show, breaking down when Giles shows her flash cards of the super vampires, or saying something obvious in Chinese that no one understands. She becomes a fantastic fighter in final episode.