The series is an exciting battle with the demons and funny school days. The opening theme for the first season is "Cosmic Love" and the ending theme is called "Dancing in the Velvet Moon", both performed by Nana Mizuki.
The first season tells the story of Tsukune Aono 5-year-old Japanese student, filled college entrance exams, which were received by his friends. Now he will have to do for next year. By happy coincidence, Tsukune father raised dropped by some strange type of paper, turned out to be opening a ticket in the"Academy of Demons." In the school can proceed with any estimates, and overjoyed parents send Tsukune there. Strange empty bus with the suspect driver to deliver Tsukune to an unknown location, were not working cell phone, a lot of flies flying and talking mice, where the greenish sky, the red sea and the ominous cliffs.