Rebirth: The Fake Young Lady Is A Real Young Lady - Chapter 874 - : The Lost Photograph

She is an expert in medicine, the only daughter of Yun Tian, Yun Valley’s master.

Her parents died, leaving her alone in this world. She fell from heaven to hell. She had a marriage prospect but her future husband broke it off. The entire world view her as a joke.

She blossoms in Feng Yun Hall, with unparalleled wisdom and startling beauty.

Against all the people eager to make a move, she lifts her hand first. Kill the chicken to warn the monkey.

But nobody knows that the soul within her has long been replaced by someone from another world.

She has no regret in the past life and originally plans to live an idyllic life, but because of the same question from the past life, she gives up the peaceful life and steps into the power struggle for imperial power.

- Description from Novelupdates

Orson transmigrated into the body of a villainous young master in an overpowered protagonist novel, and the first thing he had to do after waking up was to welcome the protagonist, the real young master, back to the family?Is it too late for me to start sucking up to the protagonist now?I took the initiative to find my fiancée to break off the engagement, but her older sister wanted to take her place and marry me instead?To protect the real young master, I berated the imperial princess, but she secretly fell in love with me?I actively pushed the heroines toward the real young master, but the heroines forced me to become the yellow-haired villain!It’s over, truly…

“Those who defy the heavens must be prepared to pay the price.”Zhu Rong dared to forge a divine grade weapon in the mortal world, an act the heavens deemed a challenge to their authority.In response, the tribulation descended with fury, striking him down and ending his life in a blaze of divine wrath.But death was not the end.In the moment his soul scattered, he awoke once more... in the body of his 17 year old self.With his memories intact and the mistakes of his past laid bare, Zhu Rong is granted a second chance, to repair the regrets that once shackled his heart, to reclaim the strength he once lost, and to finish the masterpiece that cost him everything.This time, he will forge his legend anew.And this time, not even the heavens will dare to stand in his way.

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.