Cross Academy is attended by two groups of students: the day class and the night class. Yuki Cross and Zero Kiryu are the guardians of the school, protecting the day class from the Academy's dark secret: the night class is full of vampires!

Ichigo's grandfather brings a distinguished visitor to Cross Academy, one of the oldest vampires on the senate. Kaname, the pure blood vampire discovers Ichigo's grandfather has an ulterior motive for the visit.

Yuki sneaks into an exclusive vampire party and sees Aido's parents introducing their daughter to Kaname. They, like many other Night Class parents, desire an alliance with the pureblood. Kaname is the most eligible bachelor in vampire society - but will choose Yuki?

Outside the safe boundary of the academy, Yuki is attacked by a vampire. Two Night Class students come to her aid and kill the vampire. When she asks why they killed their own kind, they tell her to come to the Moon Dormitory for answers.

Cross Academy is attended by two groups of students: the Day Class and the Night Class. At twilight, when the students of the Day Class return to their dorm, they cross paths with the Night Class on their way to school. Yuki Cross and Zero Kiryu are the Guardians of the school, there to protect the Day Class from the Academy's dark secret: the Night Class is full of vampires. Zero warns Yuki to stay away from Maria Kurenai, the new Night Class transfer...