I'm Really a Superstar - Chapter 1549: The five contestants gather!

After getting betrayed and killed by the only person she’d loved, Miss Shang wakes up in the body of the cowardly crown prince Shang Wuxin, who, due to her own circumstances, was actually a girl cross-dressing as a boy. After inheriting the crown prince’s memories, Shang Wuxin has three things on her agenda:

1. Clean up the house

2. Gather loyal followers and soldiers

3. Get the throne

- Description from Novelupdates

There were two daughters in Jiang Family. Each of them was as beautiful as flowers and jades.

Time had caught up with the famine season. One must be sold to survive.

Jiang Yun Zhu pulled the shorter stick and was taken away by a human broker.

Seven years later, Jiang Yun Zhu’s face was even brighter. She was dressed in rich clothes and surrounded by servants.

At this time, she was already the young madam of Marquis An Ping Manor. It went without saying, she was extremely honorable.

It turned out that the human broker sold her to Marquis An Ping Manor back then.

At this time, Jiang Yun Xiu’s face was battered by wind and frost. Every day, she worried about firewood and rice.

After receiving the brocade handed over by her elder sister, Jiang Yun Xiu gritted her teeth until blood came out. If she was the one who was taken away by the human broker…

Returning to the day of drawing lots, Jiang Yun Xiu snatched the short stick first. This time, she wanted to be the one above others.

Jiang Yun Zhu smilingly took the long stick. She thought it was so easy to go from a maid to the Young Madam of Marquis Manor?

Note: The wealth and honor in the heroine’s dream was earned by her own struggle, not by being sold.

Don’t get sold, live even better!

- 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.

Extras die every day in various ways in the game [Yo-Ma Great War 3].