Everlasting Immortal Firmament - Chapter 9 Book 1: 8.2: Don’t Say You Will Love Me Again in the Next Life, Part Two

Li Qiao, a soft and glutinous girl, dresses up as the little daughter-in-law of a poor family.

Rural household registration, two dilapidated houses.

What she didn’t know was that her husband, who was not stingy at home, would become a business tycoon in the future, possessing supreme status and untold wealth.

What’s more, she didn’t know that the reborn step-sister was determined to take her place as the rich wife.

The step-sister is often persuaded to leave: brother-in-law drinks and fights, and is not good enough for you.

Li Qiao is irritable every day: He said he deserves me to death.

The step-sister added: He is too poor, you and your children suffer hardships with him.

Li Qiao blushed: He said that it is difficult to divide a child unless there is another one.

stepsister: …

- Description from novelbuddy

Death, Depression, Poverty, Love issues – all things that a 27-year no-name writer faces.

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.