Beastmen: She Tames the Land - Chapter 147: Losing his beast

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.

After marriage, his little wife openly stared at other men at the ball!It seems that the family is not strict, directly take home a good education!

After Kama Taj learned magic for ten years… He Shenyan realized.

It turns out that I can’t go home, it’s not me, it’s the things you teach here!

goodbye!

- Description from novelbuddy

A very ordinary white collar worker, Han Sang Hoon.One day, he came late to work and there he finds a strange destiny called [12 Hours After]