A Wild Last Boss Appeared - Chapter 107

A Di [legitimate-born] daughter of a noble house turns into an abandoned daughter. No father to dote on her, no mother to love her, no problem. She uses one silver needle to save a dying man. What’s so unusual about a medical injection? She roams all over the world with a scalpel in her hand. Cutting throats, cutting open abdomens, cutting open skulls to mend bones. With amazing medical skills and ethics, she gathers a flock of officials, obtains the will of heavens, gains public favor, and receives Taizi’s [Crown Prince] doting. In the midst of a powerful momentum, her cheap father comes to reunite. She coldly refuses to go home or acknowledge ancestors.

After marriage—On Valentine's Day, Han Jingnian asked, “How are we spending today?”Wrapped up in her blanket and close to falling asleep, Xia Wan'an mumbled, “Sleep.”On Christmas Day, Han Jingnian asked, “How are we spending today?”With her arms around her pillow, Xia Wan'an casually replied, “Sleep.”On their wedding anniversary, holding a cup of water, Han Jingnian asked, “How are we spending today?”Cozied up in bed, with sleepy eyes, Xia Wan'an looked at Han Jingnian, wary of the water he might spill on the bed. She thought for a moment, then replied, “With you... together.”

Su Ling was reborn before the end of the world, and got a system that can strengthen everything.

In order to survive, she made the greatest preparations in the shortest time, took revenge on the scumbags and scumbags, and then embarked on a new journey.

On the way, she met Sheng Hongye, an all-around handsome guy. At first, she just wanted to live a good life, but later she found out that she had somehow become the hostess of a new type of tribe.

“Sorry, I’m not interested in the hostess.” Su Ling said with a cold face.

A certain man: “Good boy, then let’s work on the infrastructure.”

Su Ling was annoyed. “Go away, is there anyone doing infrastructure work on the bed?”

A certain man: “Hey, I know you’re tired, so let’s be your successor.”

- Description from novelbuddy

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.