Valhalla Saga - Chapter 187

The enchanting and beautiful big brother’s mouth lifted up into a demonic smile, spitting out cruel and sorrowful words. “Take it out, don’t leave an intact corpse!”

The cold second brother with the icy eyes continuously bled alongside the dying and suffering man.

Their eyes were purple and enchanting. They were this world’s devils, banished by the people.

When they gained strength, they retaliated by destroying the heavens and exterminating the earth.

She was a girl who mistakenly entered another world. She’s their salvation and is the only one that must be obtained at all costs.

Overbearingly possessive and absolutely unrestrained indulgent pampering as long as she stayed by their side.

A gentle as jade man, a faint and dedicated guard.

There were those who liked it silent.

What is the type of love?

- Description from Novelupdates

In the Tranquil Sun province of the empire, there exists an unremarkable lordship known as Xue Ying Territory! This is the home of the Dong Bo clan, the clan of our hero Xue Ying!

His father, a commoner turned noble; his mother, a noble who abandoned her clan for love, and his brother, an innocent toddler. But peace cannot last forever, Xue Ying’s peaceful life is shattered, and the only way to reclaim it is through power!

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.