Hsien-Ko (Lei-Lei in Japan) is a video game character in the Darkstalkers series. She, along with Donovan, takes the role of a "Dark Hunter", in that she hunts Darkstalkers. Despite her appearance, she is a human but transformed by a magic spell. Sometime around the 1730s, Hsien-Ko was born with her twin Shao Lin-Lin (called Mei-Ling in the English localization of Vampire Savior). During this time, ghosts and spirits of the dead arose from their resting places and attacked a rural Chinese village. After her mother was killed by a powerful demon (said to be Demitri Maximoff), she and her sister decided to use Tensei-no-Jutsu to save her, but they used a prohibited sub-division of this technique, Igyo Tenshin-no-Jutsu, and fought to release their mother's soul from the dark.