A roman centurion dies after a disastrous defeat against the Gauls. Upon death, he is transmigrated into a dungeon core. Stumbling around his new job like a toddler, Cyrus begins the first steps to creating his abnormal dungeon, defying dungeon laws and creating his own. But all isn't right in the world. He will soon be forced fight for his home once more, not for himself, not for his country but for the survival of the world itself. Darkness is coming.  Will he stay true and faithful to the light? Or will he succumb to the lures of the darkness like many others? Read to find out!