MTL - I Became the King of Villains In the Game - Chapter 406 Fountain of agelessness

After 2000 years has passed, the ruthless demon lord has just been reincarnated! But his aptitude at an academy for nurturing candidates for demon lords is, “Inept”!?

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.

I lived for you in the last lifetime, everything I did was for you, yet you wanted me to die; so, this time, life is mine to live! This world lied to me, betrayed me, and humiliated me, and I am back to change everything!

- Description from Novelupdates

When Shen Suhe opened his eyes, he saw a delicate woman banging her head against a pillar rather than die, and scolding her as a bastard to take over the girls on the street!

Shen Suhe: “???” I’m also a girl, I didn’t want to insult your innocence!

Originally a group of bad reputation, lustful, arrogant, and despised by everyone!

Shen Suhe struggled hard after wearing it, struggling to improve his reputation. Until one day, there was a weak and beautiful man on her bed.

The beautiful man was weak and wounded, and was engraved by someone, and there were bells ringing wherever he went.

The crowd exploded.

“Shen Suhe, beast! So beautiful and so cruel!”

“Shen Suhe can’t die! You actually engraved letters and hung bells for all the men. How is this different from a pet?”

“Curse Shen Suhe again! Now he’s actually attacking such a beautiful man! Crude, disgusting, bah!”

Shen Suhe: “…” I didn’t, I wasn’t!

Until one day, everyone discovered that this weak and beautiful man was aggressive and ferocious! Feet on tired bones! !

Everyone was trembling with tears in their eyes, and only then did they realize that Shen Suhe’s servant was a good person.

*

Su Ye rested on Shen Suhe’s shoulder, his hands were stained with blood, but he still looked weak and aggrieved: “Ahe, your hands hurt.”

Shen Suhe hugged the person and coaxed: “Good, it won’t hurt in a while.”

Su Ye’s hostility instantly dissipated: “Ahe, you are mine~”

- Description from novelbuddy