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

"Why you ask? It's because you picked that idiot for an older brother as your successor! What am I lacking, father? I'm smarter than him, stronger than him, I'm better with socializing... heck, I'm the best among the three of us and yet! And yet, you picked that dumb bastard instead of me!

You were the one who betrayed me first, father. You were the one who cast me aside, so I decided to join those who would support me."

Hamstero stared at his son with a pained expression on his face as he stammered, "I- I see, go back. I don't want to see your face anymore."

"Nuh uh." Keith interrupted right as Mikey took one single step back, "Wait bitch, you're done talking to your dad but I'm not done here."

Spill The Beans, Spill The Blood