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<They were not just memories!>
Suddenly, the System spooks me with her voice coming out of absolutely nowhere, what's wrong with her?! Does she enjoy scaring the shit out of me all this time? I am seriously going to die being scared by her.
<Your power over Dungeons has been enhanced, I think you can do more things with them, but It'll take me a while to figure them out completely tough. So for now just relax and do what you have to do…>
Okay then, I guess there is indeed SOMETHING, but we won't know until later, great. I guess the director of this story, miss system, just doesn't want to show it to the audience yet…
<Don't joke around...>
…Sorry.
"No, it isn't that! There is more to it, the emotions and… didn't you get new dungeon capabilities?" He asked.
Check "The Protagnist's Sister Is Actually the Strongest"!