Soul Of Negary - Chapter 7: Vol1 Ch7: Falling into a trap

When the storm struck, they chose Kogan as a sacrifice to save their city... but he found himself in an unknown world, surrounded by strangers who knew nothing of their fate. In a land teeming with enigmatic entities and lurking dangers, Kogan will soon realize that his survival was no miracle, but the beginning of a harrowing trial. Will he find a way to escape, or is this place the grave that was destined for him all along?

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.

Darius had nothing going for him. Ever since he could remember, he had been treated as absolute trash by his boss, who was one of the greatest scouts for actors, singers, idols, and anything you could think of.However, everything changed one day when a truck rammed into him and sent him back in time to start his career as a nobody. But, this time, he hadn’t returned empty-handed. He received a great talent that would make him the best Manager the world had ever seen.【Talent Booster: You can increase the talent of those close to you. The closer and more intimate they are, the better the skill's effects will be.】You can’t sing? Sleep with me, and you’ll win a Grammy.You can’t act? Sleep with me, and you’ll win an OscarYou’re talentless? Sleep with me, and I’ll make you whatever you desire.

After getting betrayed and killed by the only person she’d loved, Miss Shang wakes up in the body of the cowardly crown prince Shang Wuxin, who, due to her own circumstances, was actually a girl cross-dressing as a boy. After inheriting the crown prince’s memories, Shang Wuxin has three things on her agenda:

1. Clean up the house

2. Gather loyal followers and soldiers

3. Get the throne

- Description from Novelupdates