DUNGEON DIVE: Aim for the Deepest Level (Manga) Vol. 7

Kanami and Lastiara proceed through the Dungeon, but it's not exactly an easy trip. Their way is blocked by the magma flowing through one of the floors, and when they retreat they run into the celestial knight Lagune! Is Kanami any match for her and her powerful magic sword? Once they finally escape the Dungeon, Kanami decides to relax a little and take part in the Festival of the Blessed Birth. There, Lastiara tells him her true identity and why she has such amazing magical powers.