Potaatoo

Keith, a regular office worker from Earth, suddenly transmigrates to the world of the novel he had been reading for the past decade. The new world, which was also called Earth,  was slightly different. 

People with various powers existed who were called awakeners, making this world comparatively dangerous and also mysterious. While he was thrown into the novel's world, he was also given a mystical ability to grant systems to other people. 

Armed with his special ability, he slowly climbs up the power ladder by taking "taxes" from the people he would give systems to. The only question that remained, was what would a realistic normal man, when faced with a similar minded protagonist, do when their goals opposed each other.

God of Systems: Maker of Heroes and Villains

A few months later, somewhere in Baroma Kingdom.

Fabian stood in a dimly lit room with all of his limbs chained up.

"Ugh…" he suppressed a groan as one of the three men around him gave him a strong hit. He felt his femur break and puncture the muscles around it, but he grit his teeth and silently stood as it automatically regenerated.

Without waiting, the second guy swung his heavy iron baton, breaking one of Fabian's arms with a single hit but other than a suppressed grunt, there was no other reaction.

This continued for three whole hours and the guys who were in charge of hitting Fabian, swapped once every thirty minutes.

"Switch your weapons…" Fabian said as he panted with blood slowly dripping from various parts of his body. Even though he kept healing as soon as he got hit, it was inevitable to have some blood drip.

The men around him nodded and switched to a barbed mace before continuing but just after one round, Fabian screamed.

Fabian's Grand Reward