MTL - My Koi Sister is Three and a Half Years Old - Chapter 461 The emperor wakes up

The Grand Sovereign, Kang Chul-In. The man who was so strong that he had to be defeated. Having lost, he must now go back in time to take up the challenge of becoming supreme in the Continent of Pangaea. Will Kang Chul-In be able to overcome the 9 other Grand Sovereigns in order to grasp the Continent of Pangaea within his hands?

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 omnipotent full-level boss vs the doting wife Wudu Zhenguo general]

The modern cultivator Chu Qingzhi went down to earth to experience the tribulation of love, and was forced to lean on the body of an ancient peasant girl.

There are eight children in the little girl’s family, and she has a total of nine, so she has to shoulder the burden of supporting the family.

Exercising the art of beast control, subdued the tiger as the mount, the black bear as the main force, the wolf as the helper, and the monkey as the pathfinder, and went hunting together.

Cloth ice formations, make ice cream, and sell them all over the streets.

Planting herbs in the way of medicine, asking for diagnosis and treatment, rubbing pills, attracted princes and nobles to scramble for her, and even the emperor called her a lady.

In order to become a fairy, she supported her family while starting the road to find her husband.

…

The poorest family in the village, since they took back their daughter, everyone thought that life would become more and more difficult. Unexpectedly, after a period of time, they were building houses and buying land…

This is not the daughter who was taken back, this is the God of Wealth!

…

The general of Zhenguo, who even refused to marry the princess, went back to his hometown to recuperate for a while, and then suddenly got married. He married a little peasant girl.

While everyone was waiting to see the joke, dignitaries came to visit one after another.

The queen mother took Chu Qingzhi’s hand, “Qingzhi, how about I recognize you as my younger sister?”

The emperor looked at Chu Qingzhi with satisfaction, “Madam, would you like to be an official in the court?”

The little prince grabbed Chu Qingzhi’s clothes, “Sister Qingzhi, I want to eat ice cream.”

- Description from novelbuddy

This is a ‘rebirth’ story where Chen Rong, the heroine, finds her second chance at life after burning herself to death. Set in the Eastern Jin era when bureaucrats and their lofty yet equally hypocritical and oppressive ideas once ruled the empire, Chen Rong is made to use her past life’s experience to survive and hopefully find happiness this time around.