Sayori "Yori" Wakaba (若葉 沙頼, Wakaba Sayori?) is Yuki's dorm-mate and best friend since junior high. She has a fiance. Yori is a very perceptive girl who finds the aura of the Night Class to be scary. She is one of the few girls with no interest in the Night Class and not intimidated by Zero, frequently joining Yuki to tease him while maintaining that Yuki is the only one capable of dealing with him. When Yori discovers that Yuki is a vampire during the attack on the school, she accepts Yuki. After a year has passed, Yori remains Yuki's loyal friend, she refused to have her memory erased by the hunters, now one of the few students who knows what actually happened at the school. Kaito uses Yori as bait at the vampire ball in an attempt to provoke trouble; while she does this in order to meet with Yuki whom she hadn't seen in a year.