MTL - After Being Forced To Marry a Rough Man In the Mountains, She Was Spoiled By the Group - Chapter 1069 Calculate yourself

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.

She is one of the best thieves that the world has seen in the 24th century. However, not even in her wildest dreams had she imagine that she’d be reincarnated as a good-for-nothing orphaned Seventh Miss of the Vermilion Bird Family. She finds herself stuck in a family that mistreats her, as well as an unfamiliar place with no support system.

Jaden lived an ordinary life. This was the life that he had lived for several years now. This kind of life was one that had existed ever since the death of his parents.His parents died in an accident, leaving him an orphan. The moment that his parents died, his uncles came over and took over everything that was supposed to be taken by him.He tried going to court, trying to see if he could get back the wealth that belonged to his family, but due to the connections that his uncles possessed, he did not succeed.Completely abandoned by his relatives and friends that existed before the death of his parents, Jaden was left to fend for himself.He managed to get a job as a bouncer in a club. But as a coincidence, he ended up irritating someone that he was not supposed to offend. And with that, he was beaten and left in an alley to die.But it was at that exact moment that out of nowhere, he was bitten by a dog. Jaden could not believe it. He had never expected that he was going to die just like this. And even before dying from the wounds that he had suffered from the beating, he was going to be infected by rabies?But the strange thing that happened was the fact that after the dog bit him, a holographic screen appeared in front of him.[Congratulations on being chosen by The Bodyguard System.]And with that, Jaden's life changed completely.

Ye Song, who once lived in a technologically-advanced world, died and reincarnated into a noble teenager’s body in another world.

A fantasy world filled with magic!

A series of events filled with tragedy, action, etc. began to unfold one after the other when he fatefully encountered one of the most guarded secrets of this world, obtaining the legendary power of Wizards.

Watch how he reaches unreachable heights as a powerful Wizard in this new world.

- Description from Novelupdates