An unexpected visitor shows up at Lutz's doorstep, bearing news that is too horrible to believe. A ferocious demon, its body adorned with flames, has attacked the lumberjacks' settlement and forced them to live as refugees beyond the city walls. What's worse, they were the lucky ones. Lutz and Ricardo set off to kill the demon, but their quarry is hot enough to melt steel; how can they hope to fight it? After experiencing the loss of one partner, Lutz comes to a conclusion. He has put it off for long enough. It's time to forge his very own katana. Meanwhile, something strange is happening in the labyrinth. Cera and her party have a run-in with a monster that is far too powerful for the floor they were on. In the chaos of it all, Cera is left behind, abandoned by her closest friends. Miraculously, two men step in to save her, but the mystery deepens when they discover a huge jewel at the center of the fallen monster. Left all alone in the world, what is Cera to do next?