Living leisurely in Tang Dynasty - Chapter 3

“I am Yang Jian. By the time you read this, I've already been dead...”A strange parchment, an eye that peeks into the darkness. This is the memoir of a person who survived.

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.

His name was 25. On Avalis, he was just one of many tasked with fulfilling missions for Earth’s people. This time, he was given a simple one—live as Zeno Han and have an ordinary life.Easy. Or so he thought.The moment he took over Zeno’s body, someone shoved a script into his hands. “You’ll be perfect for this role!” And just like that, he was on set.[Fame Meter: Unable to Measure. Off the charts.]Doctor? Check. Pilot? Check. Eunuch? …Regrettably, check. Every script forces him to relive past missions, and somehow, he’s nailing every performance. Now, the industry wants to make him a star, but can he still complete his mission? Or will fame—and the terrifying unknown of failure—be his final curtain call?

Si Huaixi got bored while playing with zombies in the end times and picked up a novel.

The title of the novel is “Interstellar Heartthrob.” Si Huaixi thought it was a science fiction novel set in a peaceful era. But he had no idea it was about a strange ABO world. The men in it would actually have children?!

The protagonist is a male Omega who can have children !!!

Even more, the protagonist relied on hooking up with various rich and powerful Alphas, finally dominating the interstellar entertainment world.

Si Huaixi wanted to drop the book when he read it, and then he fell !!!

As a result, he became the cannon fodder, a gloomy 18th-line ‘Beta’ starlet, whom the protagonist hated, since his photos were popular on the Internet grabbing the protagonist’s limelight.

How can the cannon fodder who offends the protagonist have a good life?

It wasn’t long until the original owner was drugged and sent to the bed of an investor who enjoyed making short videos. Si Huaixi did not escape the drugging plot after crossing. But, he met a handsome Alpha by chance.

When he woke up the next day. Si Huaixi was surprised to find that the Alpha who spent the night with him was Pei Zhaozhou, the villain in the book!!! Strangely, the book’s villain, Pei Zhaozhou, was not furious. He pinched his eyebrows, smoked a cigarette, and let Si Huaixi go.

He thought the matter would end. But, Pei Zhaozhou suddenly came to the door one day and gave him the medical examination report. “I’m pregnant, and I need the company and comfort of the child’s father because of pheromone disorders,” he said, while slightly narrowing his eyes.

- Description from Novelupdates