Slave Harem in the Labyrinth of the Other World - Chapter 154

He doesn’t want to be wanted for bounty, or be a pirate, but if there’s no other choice, he can only become a pirate…..

Let the world turn upside down!

- Description from Novelupdates

Princess Leah wrote a suicide note ahead of her wedding.

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.

The world ended, and from its ashes, a new society rose. One where strength was law, and the weak were nothing more than dust beneath the feet of the powerful.Malakai Von Sanguine was meant to be great, a direct descendant of one of the grand families of the dome, the Sanguine Clan. But at seven, he lost everything: his parents, his future, and his ability to evolve. Branded as worthless, his life became a living hell, forced to survive in a world where the unevolved were walking corpses.But fate wasn’t done with him yet.One fateful encounter changed everything.He evolved.What he acquired was something far beyond the limits of his clan, something most wouldn’t believe possible. A power that defied the very laws that governed their new society.Now, there is only one goal: revenge.The people who took everything from him… he will hunt them to the ends of the earth. He will burn their names from history and carve his vengeance into their very bones.No mercy. No forgiveness. No escape.They will die screaming.Or he will die trying.