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Seeing how we cannot do much for now, I decided to just go back home for the time being, as Dungeon Masters we got a lot of new things we can do in the dungeons, one of them is teleport around the dungeon all we want, but only us can do that.
It also costs us around 20k Mana to do it once, so it is not cheap!
We decided to close the spatial wall by pouring mana into it and molding it as if we were moving mud, it closed just nicely.
We covered the scene of the crime with dirt and trees.
I also did something interesting, I let the System A.I. become a Dungeon Manager.
Check "The Protagnist's Sister Is Actually the Strongest"!