discovers that he is a vampire cursed with a soul, which prevents him from feeding off living humans. Buffy befriends two schoolmates, Xander Harris and Willow Rosenberg, who help her fight evil throughout the series. Buffy, her Watcher and friends later start to collectively call themselves the “Scooby Gang”. Their first major threat is the Master, an ancient and especially threatening vampire, who was trapped in the hellmouth underground. When he escapes, Buffy defeats him and saves Sunnydale. The emotional stakes are raised in season two. Vampire couple Spike and Drusilla come to town. A new slayer, Kendra, who is activated as a result of Buffy's brief death in season one, also arrives in Sunnydale. Popular schoolmate, Cordelia Chase, who resented Buffy and her friends, joins the Scooby Gang and becomes involved with Xander. Willow learns witchcraft and becomes involved with schoolmate Daniel "Oz" Osbourne, who is a werewolf. The romantic relationship between Buffy and the vampire Angel develops. But after they have sex, Angel experiences a moment of true happiness, breaking the gypsy curse that gave him his soul, thus reverting him to a sadistic killer. The evil vampire, famously known as Angelus, joins the other vampires Spike and Drusilla, and he torments Buffy and her friends. He murders multiple innocents and Giles's new girlfriend Jenny Calendar, a gypsy who was sent to maintain Angel's curse. Kendra is murdered by Drusilla. To avert an apocalypse, Buffy is forced to banish Angel to a demon dimension just moments after Willow has restored his soul. The ordeal leaves Buffy emotionally shattered, and she leaves Sunnydale. After attempting to start a new life in Los Angeles, Buffy returns to town in season three. Angel has mysteriously been released from the demon dimension but is close to insanity due to the torment he suffered there. He recovers, but he and Buffy realize that a relationship between them can never happen and Angel leaves Sunnydale at the end of the season. Giles is fired from the Watchers' Council because he has developed a "father's love" for Buffy and he is replaced by Wesley Wyndam-Pryce. Towards the end of the season, Buffy announces that she will no longer be working for the Council. Early in the season, she meets Faith, the Slayer activated after Kendra's death. She also encounters the affable Mayor Richard Wilkins III, who secretly has plans to "ascend" (become a "pure" demon)