Lei-Lei, also known as Hsien-Ko in some versions, is a Chinese jiangshi, or hopping vampire, from the series Vampire Hunter: The Animated Series. She is a charming yet formidable character with blue skin and clawed hands, often accompanied by her sister Mei-Ling. Lei-Lei is on a quest to free her mother’s spirit, trapped in the dark world of the supernatural. Her role in the series is that of a warrior who battles against the forces of darkness, using her unique abilities and weapons to protect the innocent and restore balance.