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!
Yet you left me with all the work.
Und trotzdem hast du mich
die ganze Arbeit machen lassen.
E incluso así me dejaste 
hacer todo el trabajo.
E incluso así me dejaste 
hacer todo el trabajo.
Et pourtant,
tu m’as laissé faire le sale travail.
Eppure hai lasciato a me tutto il lavoro.
Você deixou todo o trabalho para mim.
А мне одной всё делать пришлось.