After her form was exposed in town, causing an uproar, Bell and the others managed to rescue Weine. As they confront the difficulty of sheltering her aboveground, the Guild charges the Hestia Familia with a compulsory mission - to go to the dungeon's Twentieth Floor and take Weine with them. Unable to figure out what the Guild is trying to do, and with no choice but to comply, Bell and the others head back down into the dungeon... 

Wiene has been separated from Bell and the others, left in the care of Lyd and the other Xenos. At the same time, the Xenos have divided into several groups in order to move to a different hidden village. The arachne Ranieh's group accompanies Wiene in the move, but they fall into an evil plot spearheaded by Dix, of the Ikelos Familia. One after another, they are slaughtered, and then the hands of evil reach for Wiene...