Kastulle Ruins Upper Floor is the seventh dungeon in the Ellia Continent, and is the nineteenth dungeon in-game, and contains a Platform Map. It is the second half of the Kastulle Ruins. It also marks Mari's first appearance.
As the Chase attempt to escape the ruins, Lass brings up the topic about possible "legendary weapons" in the ruins. They decide to locate such weapons as the group attempts to exit the Ruins.
Elsewhere, Mari had woken up, but with her memory erased.
Elesis: *Gasp Gasp* That Cyclops was hell bent on locking us up underground. We barely got out of there. Arme: We shouldn't relax just yet. It'll be awhile before we get back up to the surface, no? Lass: Since this is the Kastulle Ruins, shouldn't we be able to find some usable weapons and shields lying around? Arme: Ah, that's right! The civilization of Kastulle was said to possess weapons infused with immense magic. Ronan: Really? If that's true, then this might be our chance. If only we could find some legendary weapons... Elesis: That could be useful. Then let's get to exploring these ruins! Lass: Hey, an exploration! I'm an expert explorer, so just leave it to me!
Post Boss Battle
Elesis: Phew. I think we're close to the surface. Ronan: Then everyone, let's all hurry it up. Mari: Ah? ...... Who am I? Where am I?
Aside from Trial Forest, this is the first and only dungeon with no Boss dialogue.
According to the dialogue, the Chase claims that they are still underground, yet the background suggests they made it back to the surface world.
Although Mari appears in this area, she is only seen in dialogue.
Strangely, the dialogue masks Mari's name as "??????". This does not occur with other characters who were not met physically until a later point, such as Amy, Dio, Alfred, and Sebastian.