May Lin is a South Korean born, 19 year old girl. She became a slayer at the same time Alexis did. After the “potentials” were sent back to normal, May Lin like Alexis became slayers. May Lin since then had no watcher and no one knew of her secret. May Lin’s own town which is 30 miles south of Seoul, South Korea, is built over a minor hellmouth. May Lin has fought vampires all alone after being attacked one day by vampires searching to kill her. Now after meeting the other slayers in episode 56, she has destroyed the hellmouth in her hometown and moved to the U.S. She is now an American citizen and helps the slayers stop the American hellmouth threats.