Keyboard Immortal - Chapter 2483: Saintess

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.

Wrongly imprisoned for a crime she did not commit, Ye Qiao was freed from the iron gates that locked her away for seven years with nowhere to go, no one to see, and nothing to move on to following the passing of her husband, who she had never appreciated. The man was part of the Special Forces and had been killed during a mission.

Ye Hao travels to the world of horror recovery.

It is full of demons, ghosts walking at night, and aliens with awakened abilities.

Ye Hao, who has always been more salty, did not expect that the golden finger would be so powerful that it would automatically level up.

“A good meal, Liuku Immortal Thief is in a beautiful mood, and the speed of cultivation is doubled.”

“Gu Lingqian will sense the presence of a Specter nearby, and he will be excited, and the training effect will increase by 70%.”

“The speed at which you made the talisman is too slow, the sky is the ****, and you have realized the mystery.”

“You haven’t touched a beautiful woman today, you are in a low mood with both hands, and you have no progress in your practice.”

“You watched a small movie, and Daluodongguan was very excited and fell into a state of epiphany.”

…

Ye Hao really didn’t think about working hard, but his eight strange skills were too good.

- Description from novelbuddy

A continuation from where High School DxD Volume 25 left off.