The Overbearing Chief Husband's Favorite: Baby - Chapter 451 - The coolest game.

A high-ranking officer in the Marines and a master of both Western and Chinese medicine, Feng Yu Heng is transmigrated with a duang sound to the Da Shun Dynasty.

Baifeng had signed in Naruto World for three years and reached the sixth level, just when he thought he could finally be salted fish, kick the dance king, and punch Kaguya.

Ding, you have been selected and invited by the Tiantian dimension chat group, do you want to join?

No, no, I’m already at level 6, so I just came to the chat group.

The beautiful monster princess: Although I lost a good chicken, the monster girl is really good.

Dagu is not Dagu: As a partner of justice, it is our duty to maintain the peace of the universe.

I’m your father: Kulala, I’ll show you a hand-torn black beard to cheer you up.

Bai Feng: This chat group is a bit indecent.

- Description from novelbuddy

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.

Her brother, who was the one who caused a coup d’etat, had sliced her throat. After she returned to the time before she died, she decided that she would somehow tame him and survive!

But..

Did she tame him too much?

***

“Brother, why don’t you get married?”

There was no reply from him, instead the glass that he held popped and cracked.

“Oh no! You’re bleeding.”

“Why should I get married?”

“Eh?”

“I already have you.”

Why should you get married, you say? You have to get the Empress so I can leave this castle! Sezh laughed strangely.

“Sezh.”

At that moment, she stumbled and Raytan pulled her body into his arms. His red eyes started to gleam suggestively while looking down at Sezh who was trapped in his arms.

“You know we are not real siblings.”