Anna Kuei

Anna was the Slayer in an alternate future Buffy witnessed in the novel quadrilogy "The Lost Slayer". She was the successor to the Slayer August, who was in turn the immediate successor to Faith (Faith having been killed a few months before Buffy's arrival in this time), August having been captured shortly after Buffy's arrival in the future. Anna's Watcher was the reinstated Wesley. Although Anna was initially resentful of Buffy- particularly after learning of August's death being the result of her attempting to force Buffy to kill her so that there was still a Slayer out there-, she came to respect Buffy's abilities, Buffy spending her last few hours in the future training with Anna after the vampire army had been vanquished.