|Japanese name:||黒主 優姫|
Friends and love
Yuki is close friends with Zero Kiryu, who she becomes determined to help once she discovers he had been turned into a vampire, following which their friendship rapidly evolves. She has been in love with Kaname Kuran, a pureblood vampire, since he saved her as a young child, but her affection is later divided to include Zero as well.
She is generally a kind, caring, cheerful, and comedic character, but she is very naive and careless girl, often portrayed as not being very smart, being a poor student due to the fact that she is a guardian at night and student in the daytime, giving her little time to study and sleep. She is often kept ignorant by other characters who know more about goings-on, which results in her character feeling guilty for being unaware of the suffering of other characters. Hino Matsuri has described Yuuki as a healing and soothing character, who exemplifies her justice side.
The endTowards the climax of arc one, Yuuki is revealed to be a pureblood vampire. Due to the threat of Rido having returned to Cross Academy, Kaname awakens her, resulting in all her forgotten memories of her past returning. This revelation alienates Zero, but the two fight together to defeat Rido. The formerly close friends part ways after Zero tells Yuuki he intends to kill all pureblood vampires, including herself, while finally revealing his feelings for her. Yuuki’s response is left unknown until she later admits to Kaname of holding romantic feelings for Zero as well. Yuuki's character makes little progress during the one year time skip, spending the entire time inside the Kuran mansion with Kaname.
Voiced by: Yui Horie (Japanese), Mela Lee (English)