The new anime Maou Gakuin no Futekigousha ( The Misfit of Demon King Academy ) will only have 12 episodes, according to information published via Twitter.
The animation is by studio Silver Link (Dusk Maiden of Amnesia), Shin Oonuma Masafumi Tamura (Two Car, Wise Man's Grandchild) directing
Synopsis: When Anoth is reincarnated hoping for a more peaceful life, he ends up going to school with his descendants in his old castle 2,000 years later. But with magic fading in this era, no one can truly gauge Anoth's power!
Via: Twitter Maou