Devil Slave (Satan system) - Chapter 782 Will And Desire

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.

[Unconventional routine text! The content is seriously inconsistent with the title of the book, and it is biased towards the daily direction and life flow! If you don’t like it, don’t enter! 】

Through the strange but familiar parallel world, from a popular writer to a high school student lying on an orthopedic hospital bed:

There is a sweet voice in my mind that keeps repeating endlessly;

In the school, there was a deskmate who was said to have nothing but good looks;

…

In the previous life, he lost to reality in the long-distance love race, and was alone for half his life. In this life, he wants to try to be a scumbag.

Is there a more suitable career than a star?

Novels, poems, music, movies…

It all starts here.

- Description from novelbuddy

Yin BiYue has made the worst purchase ever. After transmigrating countless times into the bodies of canon fodder villains, he buys a ‘Fiend Halo’ from the Rebirth Company, supposedly the best aid for an up and coming final BOSS!

In a romance novel called “The Secret Lovers of the Academy” the male lead would often torment his fiancée–but wait, why did she cross into this world to become his fiancée, the villainess, instead of the heroine?

Louise Sweeney found the perfect solution to escape the misfortune of being the villainess: “Your Highness, I just want to tell you that we don’t have to be tied with our engagement. We weren’t even officially engaged, right?”

But what was wrong with the male lead’s reaction? To her suggestion, he replied “But our engagement wasn’t false, don’t you agree?”