Keyboard Immortal - Chapter 1918: Not All Wrongs Are Righted in the Name of Justice

“Great Mr. Chen Yu, having been successfully elected as the leader of the human race last night, do you have anything you’d like to say to the whole world?” Chen Yu got out of bed, bewildered and still undressed, “I don’t know, I just woke up...”

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.

Weary reader, it is an honor that you have chosen this book amidst the heavy, dim library.Regrettably, this book is unwell.Your fingers should be able to feel the raised growths on the surface of its cover,Words written in bygone days are like parasites rooted in the pages, hoping for someone to observe their wriggling,To feel, to decipher, to touch the essence of this ailing story.If you insist on borrowing this book, please make sure to regularly check your own physical condition.

Han Yoona, reincarnated into the novel 'The Golden Heir' as the heroine of the novel and she lived her new life without complaints… until she’s killed.Her story should have ended there, but Yoona’s soul wakes up in the body of Luzia de Cazadores, the daughter of the kingdom’s most feared villain, Duke Ramiro de Cazadores.Yoona expects a cold, calculating tyrant. What she gets instead is something entirely different.“The author left out crucial details. Too many.” Yoona thinks, trying to figure out how he became the feared villain of the kingdom.As she gets to know Ramiro, she begins to realize that everything she thought she knew about Ramiro might not have been the full story.“Alright then, forget the plot or trying to rewrite everything. I’ll just grant the original Luzia's wish…”But with rival nobles plotting against them and the kingdom still fearing Ramiro’s so-called villainy, To protect her new family and escape the traps of a story she thought she knew, Yoona must outwit it to prevent the original story's outcome.