Re-Birth Of A Genius. Creator/Destroyer - Chapter 553: Sweet talk and Backlash

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.

In a world teeming with Titans, Colossals, Gigantic Monsters and Kaiju's, Erian who reincarnated makes his living collecting scraps of low-grade Defective Genetic Serum, realised he transmigrated along with his system.

Follow Erian as he grows to become the strongest Disaster Grade Titan with the help of his Titan System!

When our protagonist becomes the game character Jun Karentia, she thinks she has it made. She may be just a lowly support mage, but with her knowledge of the game, she knows she can finagle her way to the good ending following around the main character, Fabian. The problem? This game doesn’t end after one playthrough. Jun is prepared to guide Fabian through the second playthrough to the true ending when… Fabian abandons her. Now the Grand Duke Mayer Knox—captain of the Dark Knights and the secret final boss—is determined to have her join his party. Can Jun turn the final boss into the main character? Why is Mayer Knox so intent on having her in his party? And when will these rumors about being his lover stop?!

[Female lead with no romantic interest + ancient female awakening + passionate righteousness + refusing to be a submissive woman] After failing to conquer the emperor, the system punished me by forcing me to livestream modern life to ancient people.

The man I personally supported to ascend the throne saw me wearing a strapless minidress and dancing seductively at a banquet amidst revelry and wine, and he flew into a rage, accusing me of violating womanly virtues.

I smiled calmly and pointed the camera towards a modern street, launching a shocking livestream for the ancient people!

“Good heavens? It’s nighttime now, but what are those pearls shining so brightly?”

Female lead: Those are light bulbs.

“There are indeed objects in this world that can transmit sound over thousands of miles away. What a marvelous treasure!”

Female lead: This is a cell phone.

“How could the women on the streets dress so scantily and shamelessly flirt with men? Don’t they know propriety? Why hasn’t the county office come to stop these debased women and thrown them into pigsties?”

Female lead: Because this is the glorious era of China!