My Checkpoint System Turned Me Into The Godfather of Humanity - Chapter 498-END - 498 The era of the human race (grand finale)

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.

She married a driver she just met. However, the last thing that had ever come to her expectation was that her bridegroom was no other than the most mysterious billionaire in the city. This marriage brought her baby twins. Thus, she worked harder to support this family. She was the queen of the entertainment circle. When she met the king who dominated the business world, she finally knew her husband’s true identity.

I, Daddy, Paladin,

The first under the stars to bring a baby to PK strong!

If you don’t accept it, come to fight!

I had thought that my life couldn’t get worse when I walked in on my fiancé cheating on me with my best friend. But after a series of unfortunate events, I opened my eyes in a world that I had only read about in a webnovel, the Erudian Empire, ruled under the domineering, bloody reign of Emperor Helio.

The worst part?

I’m not even the main character! Reborn as Winter Royberg de la Erudian, I am the pitiful side character who is discovered to be a royal bastard princess due to a certain physical trait only the imperial bloodline possesses. But I know the end of Winter’s story and the unwanted royal punching bag is framed as a witch and killed at age 16 on the guillotine due to the scheming of the cruel empress.

An aloof, murder happy father? Check.

Psycho half-sister? Check.

Meddlesome author who wants me to follow the script? Double check!

I don’t want to die an early death again, so I’m determined not to ever be discovered as a royal again. But before I know it, I’m trapped in a palace of blood and opulence playing tricky games of power, games I have no clue how to win. How will I survive to adulthood in the imperial palace and get my happily ever after? And am I really the only person who fell into this world?