Rosario + Vampire Season II Volume 3 Love Bites

Mizore's kind of creepy, but she gets that honestly from her mother.  Her whole village anyway.  Mizore's story has been the most "monstrous" of the individual stories of the girls.  I have a feeling that snow fairies are some Japanese legend that I've never heard about.  That or Ikeda is able to build a myth better than I thought he'd be able to.