Tales of Herding Gods - Chapter 1711

MC (female protagonist) dies in a plane crash and wakes up in the body of a beautiful but corrupt and lascivious prime minister in ancient times, Zhang Qinglian. As circumstances decree, he (she) cannot reveal that the original owner’s soul is gone else calamity might occur. So he (she) decides to walk a righteous path, determined to help the lovely but simple little emperor rule the country. Not backing down after facing torture, not losing courage, destroying rebellions and facing off with scheming princes.

- 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.

The Sect Leader has taken in a new female disciple.She is very beautiful, causing countless people to be enchanted by her.Until Zhou Qing finally activated the entry, seeing a golden tag flashing above many people's heads.According to the hint, that was others' inner notes about him.The chief of the neighboring peak's note on him was [A lecherous pervert playing dumb chicken].Yan's note on him was [Junior brother who is both lustful and daring].Shi Zhen's note on him was [Junior brother Zhou with worsening sleepwalking condition]…When Zhou Qing looked at this new junior sister, her note was[So handsome][So powerful][So domineering].At this moment, it could basically be confirmed that she liked him.So, Zhou Qing gathered the courage to confess.“I... like you.”But she laughed heartily: “Dad, you were so funny when you were young.”

God: I shall bestow the Saintess upon you.
Pope: W- wait a moment! This is a boy!
God: That is the Saintess.
Pope: ??????

And just like that, the Saintess was raised by the church for fifteen years without any questions asked…

- Description from Novelupdates