As Arata aims to obtain the Demon Lord's core, Liese and Akio unleash the pinnacle of their magics in a bid to keep the Twelve Demon Commanders at bay. But will their valiant actions have consequences...? Dis Trinity is on the cusp of achieving a complete and perfect revival, and Trinity Seven will need to reunite to stop the Great Demon Lord...and his multiheaded dragon fortress!

Facing the overwhelming might of Dis Trinity, Arata joins with Abyss and Last in the hopes that an unprecedented trifecta of demon lords is enough to even the odds against the Great Demon Lord himself. But Dis has a trump card on his side: the weapon Dante Cross, capable of obliterating gods and demons alike! In the heat of battle, Arata remembers the bonds he’s forged and discovers new abilities, but will they be enough to survive…?

Adjudicator Faunalia’s overwhelming might leaves Liber and Lugh battered and bloody. On the verge of defeat, Liber begins her counterattack…by revealing her true form! Meanwhile, Arata joins Celes on his quest to find Hijiri’s memories in the world of Laevateinn. But Arata’s not the only one who has vanished from sight—the headmaster of Royal Biblia Academy has taken a trip “upstairs.” What connection does he have to the forces at play as the threat of the Goddess of Deep Darkness looms ever greater?

Arata has obtained the power of Judecca, the Black Imperial Sword! But Abyss has a Demon Lord Weapon of his own--Caina, the Red Emperor Sword! As the clash between the two Demon Lords comes to an earthshattering climax, will Arata be able to achieve victory and save Lilith?!

Drawing on Lilith's and Lilim's powers, Arata gains a new form! Meanwhile, Arin arrives at Dante's Gate only to be confronted by Farfarea of the Twelve Demon Commanders. Things are looking grim, until Yui and Levi show up to even the odds! It's one chaotic development after the next, including a possible civil war among the Demon Commanders-could the advent of the true Demon Lord be close at hand?!

Arata Kasuga is living an ordinary life with his cousin, Hijiri, when a mysterious happening called a "Breakdown Phenomenon" makes her vanish before his very eyes. Determined to eradicate the Breakdown Phenomenon and get Hijiri back, Arata enrolls at Royal Biblia Academy. It's a tough road ahead, but nothing's impossible when you've got seven beautiful girls--each a master of her own magical art--by your side! The romantic comedy and sometimes-serious wizard school story begins!

Not long after Arata enrolls at Royal Biblia Academy to become a magus do rumors begin to circulate about him being a "Demon Lord candidate." But with these rumors come gorgeous female mages...and one of them calls herself the future bride of the Demon Lord! With help from his friends, Arata continues his journey down the treacherous path of magic in this romantic comedy and sometimes-serious wizard school story!