STAR WARS: The Heir of The High Republic - Chapter 17: Kassy +18

A scientific genius named Thomas Harrier was transmigrated to an imperial prince body after a car accident that took his life. He found out that he is in a world similar to our own with a timeline akin to early twentieth century. The body that he is occupying was the imperial prince of a failing empire who suddenly rose to power after a successful assassination attempt of his father. Unaware that the attack is just the beginning of what is to come. He faces many challenges throughout. Will Thomas Harrier be able to live his second life in peace while running an empire and getting it back to its former glory? Or will he succumb into a conspiracy lurking within the country's borders?

Expect some:

Cold war era techs.

Super battleship with advanced electronics, propulsion, and fire control systems?
Helicopters?
Missiles?
Modern medicines and equipment?
AC-130?
A nuke?
Challenger or Abrams or Leopard?
F-4 Phantom or MIG-21?
Colored TV's.

Everything!!!

PS. Cover not mine, I just found it on google.

In 1984, the appearance of Sean added another fire to the already chaotic public order in the United States and poured another barrel of oil…

What? You say he’s a source of chaos and a total badass?

you are gone!

Rebirth, Beauty Comprehensive, Coquettish Lawyer, Breaking Bad, Shanzhai, Hollywood, Iron Crotch, Security Group, a comprehensive business empire.

- Description from novelbuddy

Traveling through different worlds – this is unscientific!

Get cheats – it’s science!

…

This is a simple story. An ordinary person lives in a different world, farming and raising flowers, studying unscientific science in his free time.

until the end.

- Description from novelbuddy

Important notice, The Prodigal Son of the Ming Dynasty, also known as “Ming Song”.

Hongzhi eleven years.

It’s a beautiful morning.

At this time, Zhu Houzhao was just an adult.

At this time, Wang Shouren and Tang Bohu were sharpening their swords and preparing for the imperial examination.

At this time, the Little Ice Age has come, and the long and severe cold is raging on the earth.

At this time in Nanhebo’s mansion, Fang Jifan, the idiot son of the landlord’s family and Nanhebo’s direct heir…began his shameless prodigal life.

- Description from novelbuddy