Poisoning the World The Secret Service Mysterious Doctor is a Young Beastly Wife - Chapter 424 : Gossip

This is a world shrouded in darkness, and the pervasive black mist erodes all living beings.

Only fire can dispel the darkness and protect mankind.

But the firewood will eventually run out, the fire will eventually go out, and humanity will eventually perish.

until Rhodes came.

- Description from novelbuddy

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.

God gave me one more chance and finally came back after four hundred years.

As soon as I realized I returned, I decided that ‘no one should have pride.’

My goal was to destroy the country. So, I grew up with a genius prince who lived in hiding before returning.
He took up the empire for me and I left him for him to achieve his goal.

‘I came to pick you up Charlize Ronan.’ Dylan, who became a perfect tyrant after a few years, found me after searching all over the continent.

‘Why did you flee and run away?’

Buried alive. Forgotten by the world. Cursed to refine death itself.Rin Xie clawed his way out of his own grave with nothing but broken nails, shattered bones, and a core pulsing with rot. In a world where the heavens punish the wicked with celestial fire, where death cultivators are hunted like beasts, Rin awakens with a forbidden path—one that feeds on pain, suffering, and the ashes of the dead.He cannot heal. He cannot forget. But every wound, every betrayal, every death he witnesses becomes fuel for his ascension.Under a crimson eclipse, he walks through battlefields where spirits still scream. In deserts of bone, he consumes lotus flowers blooming from despair. He learns techniques the heavens sealed away in fear—Soul Wither Pulse, Requiem Bloom, Grief Reclamation.But the deeper he dives into death, the less human he becomes.He no longer cries for the fallen.He no longer prays for peace.He begins to wonder—what kind of death should he become?In a world where power devours morality, Rin Xie will either become the end of all things...Or something worse.