LUCKY REINCARNATION: REINCARNATED WITH A HAREM SYSTEM - Chapter 129: Kalahari dynasty

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.

This story takes place in Modern China. However, no matter how much things change, in the depths of society, a secret world of syndicates and hidden factions exist.

Yang Chen, a graduate from Harvard who is fluent in English, French, Italian, and German to list a few. He is also capable of fighting and a number of practical skills. Yet he chose to go on the streets to sell fried mutton skewers for a living.

Lin Ruoxi is the CEO of a multibillion-dollar company—Yu Lei International. This company is one of the leaders in the cosmetic and fashion industry. Despite being only 20 years old, her ice-cold demeanor and beauty are well-known and unrivaled in Zhonghai City.

Due to a wild night consisting of a lot of liquor, fate has brought them together to become husband and wife.

And with that, the story begins!

- Description from novelupdates

Magnus was reincarnated in a magic world. He led a simple life on Earth and that was something he liked rather than being dragged into conflicts or into adventures to save the world or something like that.He never cared to be the MC but hoped that he would have a pleasant life, much better than his previous life.Whether he could or not, read the tales to see.

In order to seize the opportunity, the four-year-old Ayu was thrown into the deep mountain after the blizzard.

Fortunately, kindhearted people took it in.

The Wang family is so poor, sick, disabled, and indebted, but from top to bottom, they dote on her like a jewel.

Everyone said that the Wang family picked up a money-losing item, and sooner or later they would finish the game together!

Unexpectedly, this group pet doll is really a small blessing.

Xiao Ayu took out his small pocket and smiled sweetly: Portable Space, Super Spiritual Spring, Spirit-Testing Treasure Mouse, Ayu has everything you want!

There is revenge for revenge, there is revenge for kindness.

This blessing is incredible. He is not only a small farmer, but also a small business expert. He can also open an academy, open a sea trade, and establish a noble kindergarten. He has earned the favor of all the staff!

Watch the group Chong Fubao turn around and take the family to the pinnacle of life!

The time-travel girl and the villains were dumbfounded: it turned out that they were the ones who missed the golden finger!

- Description from novelbuddy