Beautiful Doctor Has a Fox Baby - Chapter 21: Why Didn’t You Bring Me Away? II

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.

“Xi Linghun wears the body of Xi Ling, who is about 20 years old with the same name and surname, and instantly becomes a rare male worm!!!
囧–×You must get married as an adult? Otherwise, the system will marry all the females with the top ten matching rates to him!!!
(Noodles tears) In order to maintain integrity, he must catch a bug and get married.
Xi Ling Zhuang Mao: Bad reputation, time is running out, no one is willing to marry how to break it?
His Royal Highness the Fourth Prince: The martial value is outstanding + the appearance is against the sky, how can no one dare to marry? Wait ten years online! Urgent!
Passionate and arrogant × cold belly, black and handsome story ^^
Whenever Aubei couldn’t stand Xi Ling’s hairy hands and feet, Xi Ling showed his furry tail and ears aggrieved. Well, the fourth prince is a plush control.
(The main attack, the main attack, the main attack in this article) are emphasized three times!
This article is also known as (777 years of high-profile dog abuse) sweet + pet + child + 1 v 1
Background Zerg: male, female, sub-female
Insect species: grass worms, meat worms

Content Labels: Strong and Strong Son Mecha

Search keywords: Protagonist: Xi Ling ┃ Supporting role: Obei ┃ Others: Fess, Xi Feng

- Description from novelbuddy

Life is often full of curveballs. It likes to keep you on your toes.But what can a regular guy do when he gets booted to a world full of gods, dragons, devils, angels, yokai vampires and everything in between with only the clothes on his back and a reality-bending gacha behind him?His best apparently.

To [Player]: This is the mystery of life, the journey of all things.You will become stronger, transform into superheroes, and possibly even touch the power of divinity. However, if you fail, death awaits you.For you have already stepped into the highest Sequence of the Evolution Game!“Isn't this making things difficult for Darwin?” Li Changhe muttered as he watched the [Player] arriving in the distance: “And giving Newton a hard time as well.”Fervent passion flows, don't spread hate if you dislike it