A mysterious woman named Ost appears and identifies herself as a familiar of the Spirit Tortoise. With her help, Naofumi and the others begin the desperate battle to seal away the Spirit Tortoise once again.
"It turns out the mysterious monsters that Naofumi and crew were asked to take care of can be traced back to the legendary beast known as the Spirit Tortoise. Meanwhile, the other three heroes have disappeared. What could they be up to? And what will the Spirit Tortoise do next?!"--Provided by publisher
The long-awaited climax of the battle against the Spirit Tortoise has arrived! With Ost's guidance, Naofumi and the others have descended deep into the Spirit Tortoise's body to face off against the mastermind behind it all. But will unexpected guests interfere?
The otherworldly fantasy continues! Naofumi finally gets his revenge! But there's a new problem: the heroes discover a dragon hourglass in an underwater shrine. They end up fighting a massive inter-dimensional whale, but nothing could prepare them for what happens next!
The only way for your own world to survive is to sacrifice another?! Naofumi and company head for the dragon hourglass with one of the four holy heroes of another world, Kizuna. But first, they need to earn some money--and they're going to do just that by putting on strange masks and starting an auction! But when they arrive at their destination, Naofumi begins to feel uneasy
After Rishia becomes the newest member of Naofumi's party, they set out to begin a unique type of training in hopes of growing stronger. But just as they're getting started, Naofumi receives a request from the queen--mysterious monsters have begun to appear and she wants him to take care of them!
"First published by Kadokawa in 2015 in Japan."--Colophon.
Will the Shield Hero have to rise up from level one all over again!? Naofumi tumbles into a whole different fantasy world after chasing Kyo, the perpetrator of the Tortoise Spirit battle. Separated from Raphtalia and Filo, Naofumi has only Rishia at his side--and finds that his stats are reset to level 1! Forced to attempt a jailbreak, Naofumi encounters a mysterious girl that claims to be one of the four holy heroes. Is she friend, or foe?
"Naofumi Iwatani, an uncharismatic Otaku who spends his days on games and manga, suddenly finds himself summoned to a parallel universe! He discovers he is one of four heroes equipped with legendary weapons and tasked with saving the world from its prophesied destruction. As the Shield Hero, the weakest of the heroes, all is not as it seems. Naofumi is soon alone, penniless, and betrayed. With no one to turn to, and nowhere to run, he is left with only his shield. Now, Naofumi must rise to become the legendary Shield Hero and save the world!"--Page 4 of cover of volume 1.
Naofumi is summoned to another world as a hero, but he finds himself the victim of a conspiracy. There's a warrant on his head for kidnapping the princess! They run to a nobleman's mansion to escape their pursuers, only to come face-to-face with someone from Raphtalia's dark past.