-----
Gustav threw Natasha into the dungeon, as the demon girl roared and complained.
"You can't do that! I am a Tower Lord!"
"You're nothing now, so get moving and get to work. You said you can make a portal to the demon world if you grow stronger, right? So go grow stronger for once." Said Gustav, he was being tyrannically cruel!
"Geez! F-Fine!"
Natasha began rushing around the depths of the dungeon, her strength enough to pulverize most creatures on sight, and gaining EXP due to it.
"W-Wow! What is this? leveling up feels amazing!" she said as she began leveling up.
The way she was able to be assimilated into the Soul Records was a bit of a mystery to Gustav, but Gaia answered him after he asked her today. He hadn't done it before because he was too busy doing many things to have this thought cross through his mind.
Check "The Protagnist's Sister Is Actually the Strongest"!