Hajime Nagumo and his high school class are suddenly summoned to a fantastical land as heroes. But while most of his classmates have powerful stats and abilities, Hajime does not. Underappreciated and unprepared, he tumbles into the depths of a monster-infested dungeon where voracity and sacrifice are his only options. To thrive in this savage world, he’ll have no choice but to welcome the abyss.

Seventeen-year-old Hajime Nagumo is an ordinary otaku whose mundane life turns upside down when his entire class is summoned to the fantasy world of Tortus to become humanity's saviors. While his peers are gifted with godlike combat stats and hero abilities, Hajime is saddled with "Synergist"—a weak transmutation skill meant for basic crafting. ...

During a treacherous dungeon raid, a classmate's betrayal plummets Hajime into the abyss of the Great Orcus Labyrinth. Starving, mutilated, and facing terrifying monsters, he resorts to devouring monster flesh to survive. The consumption alters his body, sparking a dark evolution from powerless victim to a merciless warrior determined to forge his own path home.

Emerging from the depths alongside the sealed vampire princess Yue, Hajime forms an unstoppable squad of outcasts. Rejecting his old classmates and the corrupt gods manipulating Tortus, he sets out to conquer the world's Great Labyrinths to obtain the ancient magic required to return to Earth. More+