MTL - The Growth of the Richest Man - Chapter 4 "Return to the Ming Dynasty to Be a Prince"

A skilled but unfortunate modern-day assassin was killed in a freak accident. However, he soon found himself summoned to another world by an evil wizard, who had him possess the body of a boy as an experiment. After successfully planning the evil wizard’s downfall, he used the wizard’s body as a springboard to gain influence and power in his new world.

- Description from Novelupdates

This story is centered around the man named Yi Ji-Hyuk, who has spent 1000 years in a Medieval Western fantasy-like world before returning back to the modern-day Earth. When he returns, he finds that his home is facing monster threats, and that humans with superpowers have appeared to protect the innocent people of Earth.

I opened my eyes to find myself in another world. For some odd reason, I ended up as a sword. Before my eyes laid a plain full of magic beasts, and so, I launched my body and flew in search of a partner, a wielder (females only).

There is no system, no grandpa, no bulldozers, no philately, only a small employee, no wealth, no power, no power, step by step in the Three Kingdoms!

A hero is still a hero, a beauty is still a country, a conspiracy is still a plot, a king is still a domineering? Slowly walk all the way through the Three Kingdoms, you will find that Cao Cao did not offer swords, Liu Bei not only can cry, Sun Quan is balanced, let’s have a look at Lu Bu and Guan Yu’s martial arts, and take a look at the cuteness of Xiao Qiao…

- Description from novelbuddy