Crying Brothers: The Little Sister We Hate Is Actually a Bigshot - Chapter 7

Three years ago, Yun Qing Yan fell into the Immortal Realm from the mortal realm. Three thousand years later, he became Divine Emperor Yun who shook the entire Immoral Realm. Breaking through the void and returning back to the mortal realm, Yun Qing Yan discovered that only three years’ time had passed here. “In the past, I did not possess the power to protect the people I hold dear. Now, I want the entire world to grovel at my feet.”

- Description from Novelupdates

Upon waking up, Ruan Xia had transmigrated into a webnovel that she had stayed up all night to finish reading. She had become the villain’s mother.

In the novel, after the death of her first husband, the original owner of the body had hooked up with a Mr. Perfect at the fastest possible speed. Worried and discontent that her son from her first marriage would become a burden on her, she heartlessly abandoned her son.

Having once held the best quality script and informed of future events, Ruan Xia looked at her still alive first husband as well as her future villain son. She sighed. She wanted to apply for a different script!

The horror game anchor Xiao Tangqiu crossed into a horror game.

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.