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 tall man walked along the streets and stopped in front of a huge wooden gate. He glanced at the nameplate on the wall beside the gate.

"Duke Silas Jude Waverly, Waverly Mansion huh? I didn't expect a direct letter from the duke but if he asked for my services personally, then I guess it's something serious." he muttered and a petite blonde girl smirked beside him.

"Hey Detective, will you allow me to actually help you this time instead of just making me do the chores?" she asked and the man looked at her.

He shook his head, "Nah, I don't need the help of some kid."

"I'm twenty!!" she complained, but the detective ignored her and looked at the two guards that were standing on either side of the gate.

He took out a small letter and showed it to them, "I was invited here by the Duke."

Both the guards nodded and opened the gate for the detective, who quickly walked in with his assistant right behind him.

I Hope You Get Pregnant!!