Attending Cross academy

Too bad a secret cant be hidden forever.......
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, protecting the day class from the Academy's dark secret: the night class is full of vampires! But what happens when someone finds out this secret?
The original characters and story line are not mine. However the characters i make and the twist to the story is mine.