Though the loss of Arvin and Zenobia still weighs heavy on their hearts, Souya and his
remaining party members steel themselves to take on the dungeon once again. This
time, they're up against their greatest trial yet: The Deranged Stratum, a perilous
section of the labyrinth where a malevolent being has been abducting countless
victims. And it looks like Lana is its next target...