Lei-Lei, also known as Hsien-Ko in the English version, is a prominent character from the anime and video game series Vampire: The Night Warriors, also known as Darkstalkers. Lei-Lei is an energetic and determined Chinese jiangshi, a type of hopping vampire. She, along with her sister Mei-Ling, embarks on a journey to free their mother's soul from the underworld. As a Darkstalker, Lei-Lei possesses supernatural abilities, utilizing a variety of weapons that she can summon from her sleeves. Her character adds a unique blend of humor and action to the series, making her a fan favorite.