One Piece: King of the World - Chapter 321: Teach – Seven Warlords of the Sea, Earned by My Own Hands

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.

A journey that begins with the hero of Kokot.

The roaring dragon roared, Bokai Village under the Snow Mountain.

The sons of the sea of ​​Moja feast for the great fish.

The land of gathering clouds and warm soup, Tianjin Wufeng.

The great desert Balu Bale was nowhere to be seen.

On board the Dragon Consciousness Ship, the scarlet evil star swept across the mountain.

Canglanxing raised a baby tyrannosaurus.

The blaze is ten thousand zhang, the eternal god of fire buds and water jade! (ah?)

——Ignore the above remarks about the second illness, in a word, this is a pure Monster Hunter fan~(°▽?)

(Readers: 550533684 welcome to come~)

- Description from novelbuddy

Here, only those with spiritual roots can cultivate while those with mortal roots are destined to stay mortal.

Mo Wuji only has mortal roots, but will he only remain as a mortal?

- Description from Novelupdates

He Xie, a private detective, specializes in investigating extramarital affairs, and once made mistresses and scumbags fearful, he is a good young man with lofty ideals. In the event of an accidental death, you have to start a new life system and complete tasks in exchange for the chance to be reborn.

In “Infernal Affairs”, he worked hard to be a “good person” instead of XXX; in “Youth Bao Qingtian”, he tattooed a sun on his forehead; in “Charlotte Trouble”, Yuan Hua and Qiu Ya sang a plum blossom together, “Lu Xiaofeng” “, “Dragon Babu”, “Kung Fu”, “Bourne Bourne”, “Lord of the Rings”, “Pirates of the Caribbean”…

- Description from novelbuddy