MTL - Back Then, I Adored You - Chapter 1060 Go with me, ok? (twenty)

Violet skies, a world undergoing massive changes, a deficient moon, interlinking voids…
When the world experienced a cataclysmic event,the majority of living things ceased to exist. Although humanity survived by hiding in the last safe zones, humans had to face mutated dire beasts and colossal source beasts that could break through the space barrier and enter the earth at any second.
Luo Yunyang, a young man who grew up in those calamitous times, obtained an attribute regulator and set out to walk the path of supremacy!

- Description from novelupdates

In his previous life Bai Lang was a small star. He rejected his boss and stupidly engaged in a relationship which he thought was true love.

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.

To be a good mistress:

Lesson 1: The location does not matter; all that matter is whether he wishes to.

“This is an exchange for money and not a game of love.”

Yet, he is eventually addicted to spoiling her and sending her to cloud nine, giving her whatever she wishes for.

—

“Young Master Huo, Ms. An said that she wants to be the world’s top supermodel.”

As a result, news of the Huo Conglomerate entering the entertainment industry shocks the entire world.

“Young Master Huo, Ms. An said that she wants to get married at the age of 28.” The man’s gaze deepened as he replied, “That’s too late.”

The little bun behind him secretly hands him a household registration book and declares with a nasal and innocent-sounding voice, “Daddy, I will pay for your nine-dollar marriage registration fee!”