MTL - The Rest Of My Life Is For You - Chapter 4 He looks embarrassed

The Night Has Come, and kermesinus moon ascends in the sky.Hoarse whispers flow at the street corners, and brass steam machines spew out bloody mist.Your brain is singing a hymn, eyes are chanting a melody.Skin cracks, and flesh buds swell.Amidst the Mist, the wall of flesh that has devoured thousands of corpses wails endlessly—“Weep not, our players don't bite, they just want to play with you.”Annan, the lone strategist, the top player, the savior of the mist-covered continent, the leader of the Thirteen Saints, the friend of the Twelve True Gods, the king of pioneers, “the Just”, the Gatekeeper of the Fourth Calamity, the uncrowned deity, advised kindly.

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.

A small immortal clan, with the efforts of the ancestors of the past dynasties, slowly developed into an immortal clan. This is the history of the development and growth of a small family. During this period, there were ups and downs, and there were also struggles for power and profit.

- Description from novelbuddy

A generation’s War God, once overlooking the world with disdain, had fallen into disgrace because of a conspiracy, becoming a mere son-in-law. However, what nobody had expected was that it was all part of his grand scheme, and when the winds of change blew, he, the king, returned, with the power to overturn seas and move mountains, as a dragon ascended to the heavens!