MTL - Law of the Devil - Chapter 653 [Men's Commitment]

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.

The king of assassins was reborn, mastering both alchemy and poison. Sitting inside the space, there was a ghost that loved crying.

In a world where the interstellar era has brought both promise and disappointment, Michael Fang dreams of becoming a Lord in the mysterious realm.

He longs to explore ancient ruins of fallen civilizations and build a territory loved and supported by his subjects.
But his aspirations are shattered when he realizes that he is nothing special and just an ordinary boy in a world full of heavenly prodigies.

That is until he stumbles upon the Gate leading to the Origin Expanse, a mysterious realm that promises to change everything he thought he knew about himself and his destiny.

With newfound power and unwavering determination, Michael vows to turn his misfortune into opportunity, no matter how perilous the path is.

"Watch, and witness as I extract everything!"

Follow Michael Fang on his journey through the Origin Expanse as he battles through obstacles and enemies to achieve his dreams and become the Supreme Lord he was always meant to be.