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!
so I hope you start getting along 
with Leo-kun more, as well, okay?
hoffe ich, dass du dich auch
mit Leo-kun besser verstehen wirst. Okay?
espero que también hagas 
buenas migas con Leo.
espero que también hagas 
buenas migas con Leo, ¿vale?
alors essaie aussi
de bien t’entendre avec Leo.
spero che tu vada d'accordo
 anche con Leo-kun, va bene?
então espero que você seja amigo
 do Leo-kun também, certo?