Yuki Cross (黒主 優姫, Kurosu Yuuki) is a student of Cross Academy's Day Class and one of the School Guardians, along with Zero Kiryu. She is later revealed to be a Pureblood Princess of the Kuran family and is able to return to her Vampire status by Kaname Kuran, subsequently becoming Yuki Kuran (玖蘭 優姫, Kuran Yuuki). Following this, she leaves Cross Academy but later returns in their Night Class to help the students coexist as originally planned.Yuki has a petite slender build and big brown eyes fringed with red. She has shoulder length chestnut brown hair with red/dark brown hues. She wears the trademark black uniform of the Day Class with a white armband carrying the mark of a red rose, signifying her position as a member of the Disciplinary Committee. Additionally under her skirt, attached to her left thigh, Yuki carries an anti-vampire weapon: the Artemis Rod. She wears dark leather brown boots in the manga but wears ankle brown boots in the anime series. Upon her awakening as a Pureblood Princess, it is instantly noticeable that her appearance is strikingly beautiful like her mother, Juri Kuran, and she has also been praised to have the same "kind and tender eyes/gaze" as her father, Haruka Kuran, in 54th Night. Compared to her hairstyle and appearance as a human, Yuki's hair grows to be much longer, reaching down to the back of her waist as a vampire. Her character development as a vampire is portrayed to be more feminine and more toned down compared to her human side. Yuki's eyes glow red and less brown. During the time that she had spent living in the Kuran mansion with Kaname Kuran and Hanabusa Aido, Yuki is seen from time to time to be wearing pajamas or long sleeved dresses that reach above her knees. She was also drawn to wearing high heeled shoes or sometimes barefooted. Yuki adorns pretty head pieces and accessories such as headbands, berets, pearl necklaces, and gloves with ribbons. During important Vampire or Hunter functions, she is dressed in long elegant ballgowns. In 54th Night, it is seen that Yuki gets her pedicure and manicure done by Kaname and Ruka personally. Whenever Yuki leaves the Kuran mansion to go to town in secret, she dresses more casually, but is still very neatly and fully dressed. Yuki continues to use Artemis as her main weapon after it transforms into a scythe in 41st Night. However, in 83rd Night , Yuki uses Artemis to cut off her long hair, reverting to her old hairstyle to show Kaname that she is upset with his unknown plans and is disappointed by his sudden change in character. In 93rd Night, a thousand years have passed since Kaname threw his heart into the furnace, and it was shown that Yuki has grown out her hair again. As a child, Yuki's hair was long, reaching the middle of her back.Yuki was generally a cheerful caring and a rather comedic girl with her beloved smile. She was considered a poor student because she dislikes studying and falls asleep in class due to the fact that she stays up all night monitoring the school grounds and protects the Day Class students from sneaking into the Night Class students. She exhibits a strong attachment to her close friends, especially Sayori who Yuki affectionately calls "Yori" and Zero. Her indecisive nature and reticence can be attributed to her insecurity regarding her missing past. As a human, she has been seen as standing sides with vampires, but deep in her heart she feared all vampires (because of a vampire that attacked her when she was little) excluding Kaname Kuran. Due to this fear, she rarely left the Cross Academy grounds on her own. Yuki doesn't like to reveal her fears and disguises it with a smile. Zero, however, having grown up with her for four years, was always able to tell when something is bothering her, making it hard for her to hide things from him and vice versa. Following her reawakening as a Pureblood vampire, Yuki shed the fears she once retained. When a situation demands for it, she can put in an authoritative face as expected of a Pureblood Princess. As a result, she has grown more emotionally mature and thoughtful. Yuki's overwhelming fault is the tendency to burden herself with guilt over her ignorance when she learns of other people's sufferings that they have kept secret. Yuki's favorite subject was Physical Education and her favorite food was ginger pork stir fry set, as well as parfaits.