Pocket Universe Created

I've been training for almost a month on how to create a pocket universe within the core, and it was really bad doing this training. After creating just one, I would get extremely exhausted, and it would still fail, and the core would explode in my face.

It was so frustrating to keep failing even though I knew exactly what I was supposed to do. I haven't been this frustrated with something since the past world, after all, it's never been this hard to do something that I already knew how to do.

Of course, there are still the injuries I would get every time the core exploded, and I would even cover the core with my body so it wouldn't fly towards my mother and break the room, so it was guaranteed that I would get hurt in case of failures.

I could make 1 universe per day since that would leave me exhausted, of course, as the days passed, I got better at it, and the costs became lower, so after a week and 7 universes made, I was able to reduce the cost.