Rome Must Fall - Chapter 2: Uprising (I)

Su Yu, who was attempting to create a second account in the VR trading card game “Yu-Gi-Oh! World Link Online”, inexplicably traveled to the game world, and even had his own NPC identity.Time went back to one month before the game was launched, the nameless Pharaoh was still sleeping in the body of the high school student Yugi Muto, and the Duel City with cross-generational significance had not yet started.When the game was officially launched, players logged in and found that there was a new NPC in the game that was not in the original game.Yuei Vu: Do the players over there want to buy a booster box? Fifty-one packs, five hundred and ten cards, fair price, no cashback!The players stared directly at the Pot of Greed marked as UR in the product list, their eyes were burning, and the same thoughts came into their minds…

He approached her and announced domineeringly, “Ten million, you're mine!” Little did he know that she would smash his head and flee in panic! Five years later, for the sake of her young son, she endured humiliation and became his wife, always on guard around him, “Get out, what are you doing coming in?” His handsome face darkened, “Woman, you couldn't have forgotten that we are husband and wife, could you?”

When the new snow begins, the full moon will be in the sky

The shadows are tiled below

Shining silver on it

And you walked towards me with a smile

Between the moon and snow

You are the third stunning color

——Yu Guangzhong “Stunning Color”

- Description from Novelupdates

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.