Interspecies Trader - Chapter 2 – Despair

A million years ago, he had traversed the Nine Heavens and Ten Earths, braving countless mysterious Life Prohibition Zones, in search of a way to resurrect that foolish woman, but inadvertently learned one earth-shattering secret after another. Thereafter, he went through nine cycles of reincarnation, strategizing over the world, casting his net across the heavens, with the Myriad Realms as his board! In this life, he had returned from reincarnation, his Qi engulfing mountains and rivers, “It’s time to close the net...”

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.

“Will you marry me, Anais?” The male lead proposed to me. “What about Selena?” “Selena doesn’t matter. You’re the only one I’m interested in now.” Even without a hint of interest in the female lead. “I’m sorry, but I…” Before I could even utter my refusal, the refreshing sound of coins rang in my ears. [asdf has donated 100 points!] Accept and get ten thousand points “Shall we go pick out a ring first?” Forget about conscience; if it’s fun, that’s all that matters.

Xu Jinning traveled through time and entered the fictional world of the 1980s that was a mixture of several novels, and she was a fake daughter who would die of depression three years later. Knowing that this was an unchangeable world, Xu Jinning chose to live in ruins and survive as long as he could.

And the cannon fodder of these novels suddenly discovered that they could hear Xu Jinning’s heart!

[Sister, your plastic best friend will only lie to you, and will also plan to marry you to a domestic violence man, take away your college admission letter, and cause you to be miscarried and died by the domestic violence man. 】

Xu Fanghua: …I completely broke up with my best friend of more than ten years, pushed my best friend to a domestic violence man, and went to college with a college admission notice.

[Auntie, your house is going to be demolished. It is large in area and will subsidize several houses. Don’t sell it. 】

Aunt Xu: … gritted her teeth and refused to sell the house. Three months later, they moved into a new house and started living a life of collecting rent.

[You can’t raise pigs this year because there will be swine fever. If you raise pigs this year, you will lose money until you cry. 】

The director of a meat joint factory that changed to raising chickens and ducks: … all other people’s pigs died, and only the chickens, ducks and geese raised in his factory made a lot of money.

…

Xu Jinning discovered that she was just complaining, but why did the people around her change one by one and still treat her so well.

The eldest sister who hated her wanted to help her get into college. The second brother contracted a large piece of land for her. The director of the meat factory actually wanted to accept her as his goddaughter so that she could eat meat every day. What was even more shocking was that Aunt Xu actually wanted to demolish the house. Write her name on one of the houses she got and give it to her…

Unknowingly, Xu Jinning discovered that she seemed to win without doing anything!

- Description from novelbuddy