MTL - Black Technology: Starting From the Space Jumping Machine - Chapter 171 door of space

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.

Ye Yuwei, a natural-born adorable girl.Driven by her dream of becoming an idol, she joins the 'Galaxy Girl Group,' only to discover that her teammates are far from pure-hearted white lotus flowers, innocent little rabbits, or simple-minded beings with no cunning intentions.Most of her teammates are scheming and cold-blooded, with a beautiful exterior masking their venomous hearts—they're masters of manipulation and experts in internal disputes.Under fierce competition,Ye Yuwei is ultimately framed by her teammates and ends up shelved by the company.She thought her idol career had come to an end.But unexpectedly, the company decided to repurpose her under the principle of making use of 'waste' by sending her to participate in a talent show.Amid widespread criticism, she rises to fame as a top national idol and experiences her first romance in life—the hot-blooded and passionate love of Long Zitao, the president of Dragon Entertainment.You think this marks the beginning of a perfect life?No, following her rise to fame, she not only has to endure exploitation by the company and deal with bizarre fans but also face challenges from various major figures, unspoken rules, and her ulterior-motive-filled former teammates…

The headlines bring shocking and mind-boggling news.

“Ling Sheng boarded Movie King Huo Ci’s sports car, and the duo are suspected to be dating!”

“Huo Ci and Ling Sheng entered and left the same condominium. They are confirmed to be staying together.”

“Screw off, these blind bastards. He’s my biological father!”

Third Master Jun, likewise, reacts with a similar reaction. He spits. “Whoever posted these will be blacklisted, never to be seen again in the media industry! I shall see who else has the guts to spread rumors about my wife and father-in-law.”

Third Master Jun is the most affluent man on earth and this places him at the apex of the world order. However, he is troubled by the fact that the Movie King Huo Ci, despite only being a few years older than him, is his father-in-law.