Space Odyssey: Spectre - Chapter 25: Fourth Group

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 witch, Elonora Asil, has fifteen previous convictions.

And the transmigrator, Noah Park, had no intentions of being involved in the novel’s original plot of the dragon beheading the villainess. With that thought in mind, she abandoned her titles as The Wicked Witch and sought to live a long and peaceful life.

So she heads down to the countryside wrought with deep remorse for all her misdeeds. And all should be happy… or she thought.

“Please raise me!”

And so it would seem that she stumbled upon the heroine’s pet dragon — the black-haired kid that would turn ballistic and obsessive later on — imprinted the villainess as his mother. And to make matters worse, the male lead suspects her as the prime culprit of stealing the dragon.

“How long should I keep up with you?”

She thought he’d arrest her right away, but seems like the male lead was slowly becoming the dragon’s butler.

“Can I hug you?”

“No.”

“Then… can you hold me?”

The villainess believes that the dragon needs a bit of taming.

‘Oh, male lead, won’t you sign a life contract as a real butler?

This novel is rated 18 with lots of fan service. If you are wondering if its.-NTR, No it's not.-Yuri, A big no, I guess. I don't know if it is, so maybe is the final answer.-Incest, yes! A BIG YESSSS!!!In a world ruled by cultivation and magic, the past centuries have been defined by the dominance of cultivators and mages.Cultivators capable of crushing planets with a mere squeeze of their hand, and sages who could destroy worlds with a single gesture, have long battled to prove which path holds the greater power. For thousands of years, their rivalry shaped the fabric of existence.However, the tides began to shift. Over time, the longevity of cultivators allowed their strength to grow with each passing year, while mages, bound by their limited lifespans, succumbed to the inevitable toll of mortality—even with the aid of rare elixirs.This gradual imbalance led to the decline of the mages' dominance. But everything changed when a young boy from a humble village awakened a system. When he saw her mother relieving herself at night in her room when he wanted to take a leak. This event caused significant changes for him, as he discovered that he could grow stronger by engaging in perverted activities.[You just masturbated. You just gained 10 experience points][10/100. Remaining to level up][You just ejaculated. You have gained 20 experience points & 10 Silver Solaris][30/200. Remaining to level up]

Wei Ruo, a highly skilled doctor, was time traveled as a female supporting role in a novel. She was left neglected in the countryside for ten years and returned back when she was thirteen years old.

Seeing that she only knew how to grow flowers, grass and vegetables all day long, everyone thought that she was a peasant woman.

As the female supporting role, Wei Ruo did not want to fall in love with the male lead, nor did she want to compete with the female lead. All she was thinking about was to make money, make money, and make money!

When the fake daughter was still worried that Wei Ruo’s return would affect her status, Wei Ruo had quietly saved up a private fund.

When the fake daughter was still trying to attract the male lead’s attention, Wei Ruo had already made a big fortune.

If you want money, you have money, if you want food, you have food, The shop was opened one after another.

Later, her brother became the first minister, her father became the general, and the one sitting on the emperor’s chair was her husband.

- Description from Novelupdates