Cross Academy is an elite boarding with two separate schools: the day classes and night classes. On the surface, yuuki cross and zero kiryuu are perfects at the academy. However, the elite night classes are vampires. Yuuki and Kiryuu act like guardians, protecting the secrets of the night classes and the safety of the ignorant day class.
Yuuki Cross - is the adopted daughter of the academy chairmen, she takes her job with a serious and energetic attitude.
Zero kiryuu - is a vampire hunter and a vampire. He has an anti-vampire weapon called the bloody rose. He also has a deep hatred for vampires and does not hesitate to kill.
Kaname kuran - he is a pure blood vampire. He works with the head master of cross academy, to create a peaceful co-existence with vampires and humans.