Full-level Boss Dressed As a Peasant Girl - Chapter 1: be obliterated

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.

This is a story of an ordinary boy gaining unusual powers from his nightmares… It all started when Lin Sheng experienced something strange on what he thought was just another normal day. He begins to have recurring dreams that lead him on an incredible journey of discovery as he encounters spine-chilling monsters and elusive secrets.

Leo Lock, a reading addict with the ability to truly 'read' books, never really fit in his boring 'normal' world. However, everything changed when an unknown voice found its way to his head!

Fainting only to find himself in the body of a character from a fantasy novel he once read upon waking up, Leo barely processed his new reality before he was thrown into another whirlpool.

[Role: Reader]
[Target: Reach the Epilogue.]

The only lead he had about his 'transmigration' didn’t speak much! Even the character he took over already had a foot in the coffin! How was he supposed to survive that long? Why did he have to become the protagonist’s brother?!

Moreover, what was this Personal Book supposed to be? Reading Attributes? Points?

Follow Leo as he experiences the true life of a reader in a fantasy book, facing expected challenges, and encountering all kinds of 'new'…

Would he manage to go back and find out the reason behind his 'transmigration'? Was that even his purpose? Or was this nothing but the start of a much bigger change beyond the scope of his understanding…?

***

First Volume: The Sword Master’s Second Life
Second Volume: Murim Supremacy

Note: Yes, Leo starts out with a sword, but that isn’t the limit to his choice of weapons!

Ceres, a magic swordman who has been treated as a burden in the party, is finally dismissed by Zect, the hero and leader of the party. He realized that all of his childhood friends belonged to Zect and there was nowhere for him to stay, so he decided to go off on his own…

However, he’s actually a reincarnated person and used to be much older, so he didn’t really bear it that much when he was expelled.

And he was… well, from here on out, you’ll have to read on to find out.