The Regressor Can Make Them All - Chapter 320

Kai is the hardest working warrior in his generation... and the unluckiest. In a world where most people receive magical skills, classes, or cultivation, Kai has nothing but his wits and his strength. His only choice will be to forge a new path against fate, no matter where it takes him.

Savage monsters pour endlessly from the wasteland, threatening the survival of civilization itself. They say that human strength isn't enough and only those gifted with destined powers have a chance of making a difference. Kai is hungry to fight in that war, to be someone who matters. That hunger will take him across a world stranger and more terrible than he could possibly have imagined.

What happens when a man gets transported into a foreign world filled with magic?

I’m a policeman, we took over the crime scene, and all the idlers and other people flashed!

Are you a detective? Do you have a formal license? Is it part of the police system? May I list you as a suspect?

Detective? Sorry didn’t hear it.

You want to reason? I’m sorry I’m not interested, but I’m standing there watching us handle the case!

Hey! Don’t move around at the crime scene, it’s you, that kid over there!

——New scum, listen to the teaching

- Description from novelbuddy

The dominant forensic doctor who traveled back in time to the era of the Great Tang's Zhenguan reign, became a distinguished family's abandoned girl.