My Sister the Heroine, and I the Villainess - Chapter 46

“It’s fine, everything can be restarted.”

Gu Huanyue opened her eyes slowly and a smile shown on her face.

In her previous life, she was betrayed by her relatives and missed the right one eventually.

Now that the god gave her another chance, she must regain all her lost and let those people who hurt her pay the price.

This time, her business was developed and expanded so quickly with the help of her super EQ & IQ.

She became the most shining and rich one. All kinds of handsome men were attracted by her beauty and became her loyal followers.

However, she won’t never forget that man. A guy who truly love her so much.

He: “Huanyue, would you like to marry me?”

She: “Why did he not follow my plan? But yes, I do.”

- Description from Novelupdates

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 living in a desolate land, where there wasn’t even a single blade of grass and hunger was an everyday reality, Min Sung finally returns to Earth: his home.

Coming to my senses... I find myself a desperado.In the depths of azure, black sails flutter.Treasure gleams, blades ring out.Pillage, slaughter, irreverence towards the gods.Youth fades swiftly, all but meat and wine for pleasures.[Slice of Life][Romance Simulation][Business Simulation]