Crazy Detective - Chapter 2597

The year is 2025. A devout Christian named Arthur Bennett wins a lottery to participate in a revolutionary virtual reality experience at a high-tech company called Elysium. The program utilizes a unique VR pod to immerse users in a world based on a popular anime.As the other participants—a mix of personalities with varying degrees of anime knowledge—prepare to enter the simulation, Arthur remains the only one who has never indulged in anime. Upon entering this new world, he discovers an unsettling truth: pain is excruciatingly real, despite the creators' claims of a dampened pain response.He eventually finds himself trapped in prison, unable to log out, and demanding to be released from the program. Calls go unanswered, and the world of ninjas becomes a nightmare where hunger, thirst, hygiene, and even death are all real.Angered that he was deceived, he abandons all sense of logic and vows to become a villain no one would have ever anticipated.

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 later generations immensely revered Great Wei’s Jianan Emperor. During the period of his reign, Great Wei entered its golden era.

Interestingly, all the records, that glorified his accomplishments unanimously agreed, that Jianan Emperor had only one flaw in his life: He favored only imperial noble consort!

Zhou Tong was very annoyed. She time-traveled out of blue, didn’t even have time to take a breath, and yet, already had to deal with troubles.

What? The original owner of her body was a walk-on cannon fodder*? She couldn’t even be regarded as a second female lead?

Zhou Tong is angry! Change, it must change! This plot needs a beautiful turn around in order to be worthy of sis’s coquettish personality!

This is a story of the unfortunate time-traveling lass, who possessed the body of reborn aboriginal maiden and became the Great Wei’s beloved imperial consort.

- Description from Novelupdates