My Fenrir System: Heir To The End - Chapter 3: Showdown against the dungeon boss Part - 2

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.

“Ah……painful”

Lying on the cold operating table, the girl’s sentimental feelings faded, a mysterious man took her innocence.

Meeting again, the mysterious man was actually a black bellied VIP, capturing her home, wanting to spoil her.

“Reporting to the Boss, some slag man came looking for the madame.”

“Directly bury him alive.”

“Reporting to the Boss, some slag lady was jealous that the Mrs. came first in a medical contest, and slapped the lady in the face.”

“Her slag face will be broken, send her straight to hell on earth to die.”

“Reporting to the Boss, the enemy is going to catch your wife and use her as a military doctor.”

“Immediately dispatch the armed forces, and bomb the enemy!”

“Reporting to the boss, the lady ran away from home, she said to tell the president she wants to give him a child……”

“F***, I did not feed her last night! Catch her, the army has seven days and seven nights of holiday, I have business to attend to!”

- Description from Novelupdates

Kazura was selected as the winner on a lottery that he bought on a whim and received ¥4,000,000,000 (4 billion yen).

This book was inspired by My Hero Academia: Adaptation“Who decided being quirkless means you can't be a hero? Those are just rules made by people who never tried to break them.” When a battle-hardened warrior dies in one world and awakens in the body of a quirkless boy in another, the rules of heroism are about to change.Armed with combat experience from a darker realm and an iron will forged in warfare, he sets his sights on U.A. High School - the pinnacle of hero education. But in a society where superpowers are everything, his approach to strength might just shatter the entire system.Behind a gentle smile lies the mind of a warrior. As he builds his power through unconventional means, one thing becomes clear: rules were meant to be broken, and this world's definition of “hero” is about to be rewritten.Sometimes the strongest ability isn't a quirk at all. It's the will to change everything.