6, life is carefully choreographed. School, study, and the occasional visit with his friend and classmate Safu. One fateful day, however, he takes a misstep, sheltering an injured boy his age from a typhoon. Known only as Rat, this boy is a VC – a fugitive living outside the computerized tapestry of city control – and helping him will throw Shion’s life into chaos and start him down a path to discovering the appalling secrets behind the superficial perfection of No. 6.

    She was adopted by the headmaster of Cross Academy, and now works alongside Zero to guard the Academy's secret. Cross Adademy 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!

    Meanwhile, she starts to notice that water becomes agitated whenever she goes near it! One night, hands appear out of a puddle on the street and drag her into the water. She emerges from the water to find that she has been transported to an ancient village somewhere in the Middle East. She is then captured by armed troops and taken to the queen's palace, where she learns that the queen had her kidnapped so she can offer her blood as part of a ritual that will kill two princes in competition to inherit the kingdom.