The council's rampage sends quakes through the demon realm, and the demon Chaos is called forth through a giant magic circle. That commander of all heroic spirits flails madly, seeking to claim Basara, Mio, and Leohart's lives. Do they even stand a chance of victory with this supreme being before them?!
Meanwhile, Maria, Yuki, and the others put a final end to their own personal battle.
"Believe in me... once more."
The ultimate sibling combo risks their lives to face the disaster striking all of the demon realm!
Your son has changed the 
history of the demon realm.
Dein Sohn hat die Geschichte
des Dämonenreichs umgeschrieben.
Tu hijo cambió la historia 
del mundo demoníaco.
Tu hijo ha cambiado
 la historia del mundo demoníaco.
Donc, ton fils a changé l’histoire
du monde des démons.
Tuo figlio ha cambiato la storia
 del mondo dei demoni.
O seu filho mudou a história
 do mundo dos demônios.
Получается, твой сын изменил 
ход истории мира демонов.