The Noble Lady Gives Birth to My Child in Secret - Chapter 321 - : Do You Have Guilt in Your Heart?

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.

After getting shot, Lucas, a serial killer, reincarnated into the novel world as a tragic villain with the same name, Lucas Ciffer.

Lucas Ciffer was supposed to be the Holy Kingdom's successor to the throne, but his demonic appearance and the powers he possessed terrified the entire kingdom. A white-haired boy with red eyes and pale skin, together with his dark powers, got persecuted and exiled by his own family. Not to mention that in the future he was destined to die by the hand of the hero.

Lucas fell from holiness, and, with the serial killer's bloodlust and knowledge of the future, he decided to prove the world right.

Yes. I could be a villain; no, in fact, I WILL BE THE VILLAIN.

As a snake catcher, Xu Ying has always been honest and diligent, until this day, he caught a different snake…

On the first day of March, the land of China was full of incense, and the statues guarding various villages, towns, cities, states and counties woke up one after another to enjoy the sacrifices of the common people.

However, from this day on, the world has been in chaos.

This book is also known as “Ninety-six Cultivation of Immortals”, “Zero Zero Seven Also Cultivates Truth”, “Inner Volume”, “Rolling to Death”, “No one TM wants to fly”, “Good Pit”, “The Big Pit is Deep”, “Help Me Up” ” At the age of thirty-five, my fortune came” and “The Appearance of the Great Demon King Xu” and so on!

- Description from novelbuddy

After transmigrating into a apocalyptic world, Yasin awakened a system that allowed him to travel between two timelines.He soon discovered an astonishing truth—women from both worlds were mysteriously linked.In the brutal apocalyptic world of 1993, they pledged their loyalty to him for survival.Yet, in the dazzling spotlight of 2006’s Hollywood, they remained legendary superstars.But the moment they saw him… they couldn’t stop herself from kneeling.