Ichiban Ushiro no Dai Mao, or Demon King Daimao, is a light novel series by Shotaro Mizuki, with illustrations by Souichi Ito. As of December 1, 2009, eight volumes have been published under the Hobby Japan Bunko imprint.
The story of "love, magic, and battles" revolves around Akuto Sai, a boy who aims to become part of his country's highest order of magicians and contribute to society. His dream is to one day become a "high priest", an exemplar and champion of good. On the day he is admitted into the Constant Magick Academy, his aptitude test predicts the following: "Future Occupation... Demon Lord ." Thus begins his difficult school life in which he is resented by his studious female class head, desired by a girl with mysterious powers, and guarded by a beautiful female android.
An anime adaptation started broadcasting on April 2010.
A manga adaptation by Souichi Ito started serialization in the shonen magazine Champion Red on September 19, 2008.