Skill Gemstone

Skill gemstone?, I asked Elise, This gemstone can level up your skill, on magic it's pretty worthless, but for abilities it's a gold on the ground, I asked her why does the gemstone isn't available in the market, she said that, like I said ability users are pretty rare, so the shops in the district can't sell this, and there's a lot of work, like now, that's a D-class magic beast and it gave us a lot of work, Now that you mention it , I can understand now. We started running again but my mind is in this skill gemstone, like what if I collected a lot of this gemstone thing, can my ability evolve? or even brake the limits?, ' don't think about it, even if you collected a lot of D-class magic beast's skill gemstone, It will kill you if you consume so much of it ', you let me touch that earlier!, for a normal human you can only Consume three stone in your life, if you brake that limit you will definitely die. She told me the person who tried to brake the limit and died right on the spot. A scary sorry if you ask me. I thought that this will be like a game, that you can slay monsters and level up, I guess those things don't happen.