I'm like it so far. Despite he telling himself he will be more positive, his parents death still haunts him which is great room for growth. I dont quite understand the power jump you get when you reach creator rank though. What makes the weapons they created special and different from the beast weapons? How big is the power jump from creator rank and onward? I also really like the side characters interesting powers too. I dont quite understand the power of the creator rank student the MC was facing though (sry I'm not good at memorizing names) and I dont totally understand Emmys power either ( because she's not just healing right) but it's looking solid so far.
The rank between Creator rank(4th rank) and the Soul Collecter rank(3rd) is like an ant before a spider. The strength is very different, but also in the 4th rank people can create object with their power.
There is a moment where two people did this(At this moment its in the privilege chaps) called Object Creation, but I Don't wanna spoil things.
As for I don't really know what you mean by
As for Emma, she is a just a healer, but her fire powers came from the Soul Creature she got in the previous chaps.
On the other hand the difference between a weapon created and the weapon they get from beasts is that what they create is as powerful as their current rank and what they can create is to their imagination, so obviously the possibilities and variations are limitless.
(Because ranking up a Soul Creature is gets special requirements like energy crystals.)
Haris_G