Amidst the chaos caused in the city by Wiene's appearance, the Guild sends to the Hestia Familia a obligatory mission to escort her to the 20th floor of the dungeon. After sending Bell and the others to the dungeon, Hestia attends a meeting with Ouranos, who explains the situation to her. Once at the 20th floor, Bell's party is confronted by a pack of monsters using weapons, much to their surprise. Once confirming their will to protect Wiene, the monsters stop attacking and welcome them instead, introducing themselves as the Xenos, who unlike normal monsters, possess intelligence and are capable of human speech, and Ouranos reveals to Hestia that he hopes that her Familia can become a bridge between humans and them.