I Became the Male Lead's Adopted Daughter - Chapter 217

In the Sky Sword Continent there are thousands of sects and strong cultivators as common as trees. In order to prevent his older sister from being forcefully married off, Lu Xuan had no choice to but to unceasingly cultivate and enter a sect to ask for a favor. By chance, a sword-shaped crystal of mysterious origins entered into Lu Xuan’s body, containing countless top-class martial skills, powerful martial arts, and everything you could wish for! A martial legend starts here…

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.

Above the firmament, a giant Kun, stretching thousands of meters long, flew over the city, ignoring the barrage of missiles.In Australia, an apocalyptic serpent, thousands of meters long, destroyed cities and devoured millions, leaving slowly after the detonation of several nuclear bombs.In this perilous world, Chen Chu, who unexpectedly acquired the avatar of a six-horned salamander, felt somewhat bewildered.What could a palm-sized salamander do? Record videos to gain traffic? Catch shrimps in a creek? Or... evolve into a colossal beast?A six-horned salamander, also known as the six-horned dragon, with the ability of infinite evolution, was gradually evolving into a mythical apocalyptic beast.Its body length extended to hundreds, thousands, and even tens of thousands of meters...And with the characteristic of synchronized enhancement, Chen Chu's own body also grew stronger, with increasing power and speed, and even...

Su Hao traveled through the city and came to a world of integrated novels, and became one of the villain’s male supporting characters. He even kidnapped the heroine at the beginning.

Su Hao was a little panicked. In this world, various protagonists were born…

The son-in-law of the Dragon King pretends to be a pig and eats a tiger, a super hero started from scratch, the soldier king returns, a peerless killer, an entertainment king, an immortal anchor, and an immortal respects life…

Facing the children of luck, what should he do?

“Ding – The host’s mood fluctuations are detected, and the Destiny Villain system is activated. Please make the following choices.”

[Option 1: Release the heroine, as if nothing happened, reward: Eliminate the identity of the host villain as a male supporting character! 】

[Option 2: Hunt down all the protagonists and become the villain of destiny, reward: lucky ten consecutive draws! 】

Since then…

Su Hao takes heaven and earth as the chessboard, and the protagonists of all walks of life as chess pieces, becoming the ultimate boss behind the scenes, dominating everything, covering the sky with only one hand…

- Description from novelbuddy