Demon King Daimao(2010)
Original Title: いちばんうしろの大魔王
S1 E12 - The Perfect Ending?
S1 E11 - The Girls' Final Battle
S1 E10 - Sai Akuto's Imperial Capital War
Videos: Trailers, Teasers, Featurettes
Demon King Daimao follows Akuto Sai as the lead character, who on the day he enters Constant Magic Academy, receives a very unexpected future occupation aptitude test result: “Demon King.”
Demon King Daimao - watch online: streaming, buy or rent
Currently you are able to watch "Demon King Daimao" streaming on HiDive or for free with ads on Crunchyroll, VRV. It is also possible to buy "Demon King Daimao" as download on Apple iTunes.