Series: Trinity Seven

Lilith has been captured by her own father, the demon lord Abyss Trinity, and he's poised to annihilate Arata Kasuga and his companions. In the face of Vanitas, the overwhelming power possessed by Abyss Trinity, their only hope is a secret weapon hidden within Sky Library - but the demon lord won't make things easy! Can Arata overcome this most...

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 demons comes to an earth-shattering climax, will Arata be able to achieve victory and save Lilith?! Discover the high-stakes battle in Trinity Seven, Vol. 9 by Kenji Saitou and...

Arata Kasuga transfers to the Royal Biblia Academy to solve the mystery of the destruction that is ravaging the world and that—more importantly—has stolen his cousin Hijiri from him. It's a tough road that lies ahead of Arata, but nothing's impossible when you have seven beautiful girls—each a master of her own magical art—at your side! Discover the enchanting world...

Not long after Arata enrolls at Royal Biblia Academy to become a magus, rumours begin to circulate about him being a Demon Lord candidate. But with these rumours come gorgeous female mages... and one of them calls herself the future bride of the Demon Lord! With help from his friends, Arata begins his journey down the treacherous path of magic...

At the Royal Biblia Academy, magical occurrences are commonplace... but ghosts?! While investigating a ghostly happening at the school, Arata and his friends find themselves trapped in the Eternal Library—where a pigtailed beauty suddenly appears before their eyes! Just who is this mysterious babe, and what is she after?!! It's Volume 3 of this romantic comedy and sometimes-serious wizard school...

One of Trinity Seven's own members, the fiendish Liese, attacks Arata with a passionate kiss that purloins all of his magical powers! With the Demon Lord Candidate's magic in her possession, Liese's powers are unmatched. But the key to defeating Liese must lie with the Demon Lord Candidate Arata! What will happen when he's forced to undergo insanely tough training?!...

All of the Trinity Seven members have finally gathered as the fierce battle between Arata and the demon Hijiri 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 in the open skies, presiding over all the...