Aiz and Hermes Familia have joined forces to eliminate the monster outbreak in the pantry, but an unexpected dead end forces their expedition into uncharted territory. Unusual changes are disrupting the delicate balance of the Dungeon, and Aiz finds herself alone against her nemesis, the red-haired Tamer. Will her recent rank-up give Aiz the edge she needs to fight this battle on her own? And without Aiz's support, what will become of Hermes Familia when disaster strikes...?
Escorting members of the Hermes familia deep into the dungeon Aiz (who recently reached level 6) gets a chance to test her new strength as she is split from the group and has to face the red headed monster tamer who calls her Aria. There is plenty of action and some humor in this volume as one might expect in this series. :)
Meanwhile with the powerhouse Aiz taking on the incrediably dangerous beast tamer by herself the rest of the Hermes familia is dealing with the Violas monsters and dangerous cult members willing to do anything to win. Even with Bete, Lefiya , and Filvis making their way into the dungeon casualties and injuries are going to be far from rare in these trying times.