Arifureta Shokugyou de Sekai Saikyou (WN) - Chapter 400

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.

In the past when someone mentioned getting married, Du Lei Si (Durex) would feel fearful enough to flee.

What is so good about getting married? Organizing a wedding ceremony is akin to spending money like running water. After giving birth, you must also raise the child. If you don’t maintain yourself well, you will get out of shape.

As a result, maybe a vixen will grab your husband and take your baby away.

Not getting married! Definitely not getting married!

However, fate is like this. Whatever you are afraid of, unfortunately, it will be given to you.

I was walking on the street, minding my own business, yet, impossibly, I encountered a stranger proposing marriage. He placed a dazzling diamond ring right in front of me. This handsome guy knelt down on one leg and looked at me with such a sincere expression: “Miss, would you please marry me?”

This, isn’t this like some drama?

After pondering over it, I decided that this surely must be a stunt from some television station’s new program. Invite a celebrity to pretend to be a passer-by who proposes marriage. This year, with the economic crisis, being a producer is not easy.

Thus, out of kindness, I accepted the diamond ring. Only to find out that all of this was actually real! The diamond ring is really and truly a genuine diamond from South Africa. Moreover, the groom is also a genuine rich man!

Actually, wasn’t this just like the legend of marrying into a rich and powerful family? I always feel that in front there is the belly black President who is like a ruthless wolf watching me attentively, and if I am not careful, he will tear me apart and swallow me into his belly. Whereas behind there is the crowd who do not know the truth, standing in a circle and watching as the drama unfolds. I still have not explained clearly but Mrs. President’s fame has already spread quickly from mouth to mouth.

This time, Du Lei Si really feels regret.

Who can tell me, can I not marry ah?

Lothur Ritter mysteriously died on Earth and suddenly transmigrated to a bizarre cultivation world.

Now in a new body, full of problems related to his predecessor and surrounded by uncertainties and doubts about his new reality, Lothur will face the arduous journey of cultivation with the help of a system.

However, can he trust the system? Why he? What is so special about him that it has been chosen? Where will he end up? And what about this Lost Tree?

Well, Lothur will pursue these questions while exploring the wonderful, vicious, and incomparable cultivation world!

You think too much, cultivation is not like this…

When Kong Hou steps on the path to cultivation, she learns that all xianxia stories are full of lies.

A relaxed cultivation story.

Kong Hou: a traditional musical instrument like a harp. The female protagonist’s name.

- Description from novelupdates