Hey author, if you allow it, can I suggest on the story's moral support? You said that since we can’t use the energy (forgot the word) used to make vital instruments but can sense it, and I can’t remember, but I think you also said we get some type of power boost. So I was thinking what if we could steal that energy like in a fight or something we take that energy ourselves making our opponent lose the ability to use their vital instrument for a while. But that's just my thoughts feel free to ignore me.
