Shameless Author here, speaking after writing fifteen chapters of this novel. I will shamelessly give myself a five-star review.
This novel entails a story about systems. All Ability Awakeners have their own system, but in some classes, some Awakeners are chosen by unique systems, such as the Plundering System (MC's second system), Thunder God System (Chapter 14), Vampire System, Undead System, Fox System, Dragon System, and many more.
I would say it has a bit of Eastern fantasy with magic. The novel follows the MC's journey as he battles these unique system holders, subduing some and plundering others. It is a world where the strong prey on the stronger.
You'll surely love it.
As for the systems' origin, I'll just drop a hint: gods.
Feel free to ask any further questions related to this.
Thank you for continuing to support this shameless Author.