Scholar's Advanced Technological System - Chapter 1432: Nitrogen Shield!

A detective travels across the United States and becomes an agent of the Los Angeles Police Department.

After getting through the initial confusion, he repeatedly solved strange cases, became famous all over the world, and was called the most legendary detective in history…

- Description from novelbuddy

When Zhou Shu woke up, he learned that he had become a Forging Apprentice at a workshop in the Forging Division of the Great Xia empire.

“Hey, hurry up and massacre those bandits!”

In a world fraught with innumerable dangers where living day by day is a struggle, a young man from the modern age transmigrated into such a world, accompanied by a peculiar system made for assassination.