The Only Favourite Ugly Husband - Chapter 1 - Lived Only to Starve to Death

As a salted fish, Yun Su, who never pays in games and always relies on prostitutes to fight Shenhao players, wrote down his 20th birthday wish on a notebook with trembling hands: immortality.

When I woke up, my dream came true, but I almost cried. Is the world of cultivation so cold?

- Description from novelbuddy

After her rebirth, she went from the Commander of the Apocalyptic World to the useless second daughter of the Nian family from the upper-class society!

'Trash', 'stupid, and 'useless' were the typical labels the rich daughters of other families stuck on her.

In the past, the Host was often framed by her manipulative sister. While her stepmother tried to seize her inheritance rights, her scumbag of a father wanted her dead more than anything in the world.

Since her rebirth, Nian Yue has been settling old scores one by one. “Don't be anxious, everyone! I will slay you one by one!”

From then on, she became the top scorer, the champion racer and even the god of investment!

He was the Fu family's Ninth Young Master. He was handsome, violent, moody, and had an androgynous face. Many women flocked to him, but everyone knew that under that countenance was a devil that killed people like they were flies.

Initially, it was thought that this devil would be arrogant and aloof all his life and would never have eyes for anyone. However, everyone’s jaw dropped when they witnessed the devil trailing behind the Nian family's Second Miss, wheedling and asking for hugs!

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.

As a man who had lived for 20 something years and had always considered himself as a straight man, he woke up one day and found himself possessed by a stupid and cute system. Moreover, it was a gong-shou cultivating system?! Let’s see how a shou with raised hackles evolves into a (pseudo)queen shou, incidentally with a story of a hidden loyal dog gong.

- Description from Novelupdates