Akinari Nao: 24 books

All of the Trinity Seven members have finally gathered as the fierce battle between Arata and the demon Hijiri finally reaches its finale! But there's no rest for the weary as a new development quickly springs up, and this time the stage is set in Sky Library!! Since ancient times, it has existed...

The Demon Lord "Astral Trinity"--the prelude to the melody of destruction--has descended! Will Mira-chan and the others be able to get Arata back to normal?! And with her life on the line, Levi takes a last stand to protect the campus...! Gripping battles of intensity await in Volume 6 of Trinity Seven!!

The final fight of the Magic Research Battle finally arrives, bringing with it an unimaginable outcome! It seems all's well that ends well, but after the festivities, a mysterious woman attacks the school! Mira, Akio, and Levi intercept her, but she counters with a rain of hellfire! Will the girls of Trinity Seven be able to handle this envoy of the True Demon Lord...?!

Arata is barely two steps into Dante's Gate when he meets a new damsel in distress-Ilia's little sister Okto. The younger Ilias Fragment begs him to travel through the nine circles of hell to rescue her trapped sisters. The Twelve Demon Commanders guard the imprisoned grimoire girls...Is Trinity Seven strong enough to take on the monstrous servants of the True Demon Lord?!

Behind Dante's Gate, Arata and the girls lock horns with more of the Twelve Demon Commanders. Liese unleashes a form of mystic number magic that shocks even Miglione. Lilith squares off against Arbariccia's fierce attacks in a contest of strength and spells-and brings forth a fearsome new power born...

As part of their fifth quest, Yotsuya and the other heroes are involved in an orc-hunting expedition. Between the squabbling among the human side, the suspected presence of a traitor, and the intelligent orcs' massive frames, things look grim for the team. Yotsuya himself is deemed unfit to join the...

The ultra-practical third-year in junior high, Yusuke Yotsuya, is still stuck in this alternate universe where his next quest is to “transport cargo.” While on the journey, he and his party rescue a platoon of soldiers being attacked by monsters who join them on their way. However, the soldiers,...

The sixth Hero is Glenda, a fetching American who isn't shy about broadcasting her lack of interest in men. Through her, Yotsuya learns of other Hero groups dotted around the "real" world. There's a clear need to make contact with them--and so Yotsuya decides to...make a movie?! But in the...

Ciriatto of the Twelve Demon Commanders attacks with enormous strength, making Hijiri and Ana have to use up all their magic and leave their bodies bloodied and bruised...The two girls dedicate all their strength in a final gamble!! It's a forbidden spell that could cost them their lives! What outcome awaits the two at the end of this fight?!

Drawing on Lilith's and Lilim's power, Arata gains a new form! Meanwhile, Arin arrives at Dante's Gate and is confronted by Farfarello of The Twelve Demon Commanders! But her reliable teammates sweep in when Yui and Levi make an unexpected visit. With their assistive powers, they face off against...