Start by Spending One Billion [Entertainment Industry] - Chapter 19

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 story about a family's struggle to ensure that, above all else, their youngest escapes from the mines where he was born into slavery. Follow Alistar as he struggles through terror and tragedy, embarking on a road to discover himself and his heritage.

Traveling through the world of One Piece, Ron, who became Kuina’s fiancé, awakened the god-level theft system.

In order to become stronger and change the fate of Kuina’s death, and to survive in this dangerous era of great pirates, Ron started to steal Sauron’s top kendo talent.

And that’s just the beginning.

In order to become stronger, Ron embarked on a journey to steal the talents of the world’s strongest.

“Ding! Congratulations to the host for stealing Karp’s physical talent!”

“Ding! Congratulations to the host for stealing Nika’s talent!”

“Ding! Congratulations to the host for stealing Shanks’ domineering talent!”

“Ding! Congratulations to the host…”

- Description from novelbuddy

Because of a transmission error, Tan Jinxue, who loves women and loves men, had to embark on a mission journey to conquer the heroines of the world and become the male god of all people.

Heroine No. 1: He is my salvation.
Heroine No. 2: I have seen the vast universe, the most beautiful is the starlight seen on his shoulder.
Heroine No. 3: I would rather die with my spirit and soul, and my body die, as long as it is for him…

As a gold medal salesman in the fast-paced game, Tan Jinxue expressed satisfaction with her performance, and by the way… she also attacked the male protagonists who were poached.

Rival No. 1: You are the only one who matches me.
Rival No. 2: I got 150 points in the test, can I kiss you?
Rival No. 3: If this world does not have you, let it be destroyed.

The one who is loved is always the master of the spirit, but the one who loves loses his soul.
The heroine Su breaks the sky, is an expert at flirting with girls, professionally seduces rivals in love, kills both men and women, without fail!

Content tags: special liking, fast wearing, women’s dressing up as men, cool text
Search keywords: Protagonist: Tan Jinxue, Zong Zi ┃ Supporting role: ABCDEF ┃ Others:

- Description from novelbuddy