Contract marriage: His Sweet Wife and Cutest Twin Babies - Chapter 1166

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 strangest fate, the most exciting mind games, the cruelest survival battle, the craziest fantasy, the most bizarre truth… The first is here to battle for another ten years!

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In a world that is aware of other worlds and systems, a reality show was created to have participants receive a system and face challenges. All for the entertainment of the world's that cam view it.All participants have no idea about other worlds actually existing, let alone something like this going on.Elmo is a young man who had been shopping when he was chosen to take part in this challenge. Part of him is intrigued by the idea of the challenges, but most of him would rather just go home. If only that was an option.The following are the main challenges in order in the story:Challenge #1: defeating the starting dungeonChallenge #2: prevent the assassination of the kingChallenge #3: defeat the fire dragonChallenge #4: locate and capture a firebirdChallenge #5:There will be no graphic descriptions of any mature content. When such material will appear, it will either be lime or just glossed over.I'm writing this as I go along. If you have any suggestions or thoughts I'd be happy to hear them.Also, starting at chapter 406, all subsequent chapters will be updated every other day, due to stresses in my life in rl. I hope at some point I'll be able to start updating every day again on this book, but right now I'm not going to be able to do so. I ? sorry for anyone who is unhappy with this.

God: I shall bestow the Saintess upon you.
Pope: W- wait a moment! This is a boy!
God: That is the Saintess.
Pope: ??????

And just like that, the Saintess was raised by the church for fifteen years without any questions asked…

- Description from Novelupdates