At long last, Satou and company have arrived at Labyrinth City Celivera! Eager to uncover its mysteries, they waste no time before registering with the local explorers' guild and securing a base of operations. However, life outside the labyrinth itself is less than ideal. Children are starving in the streets, a noxious miasma plagues the populace, and the circulation of dangerous drugs stirs up chaos within the noble community. Will Satou be able to give succor to this troubled city?