Maou-sama no Machizukuri! ~Saikyou no Danjon wa Kindai Toshi~ - Volume 8 Chapter 6

My name is Qi Yuan, I am a time traveler and became the senior brother of Qise Peak.

I have a game jade slip that can connect to the heavens.

My eyes can see hidden information.

[This is an ordinary grass, but three days ago, Lord Kumu and Empress Dashang had a tryst there. 】

[Her name is Ruan Yixi. She may be your beautiful master on the surface, but she may actually be your wife. 】

[This is the way of heaven in the world, and it is the best spiritual creature to build the foundation of the way of heaven. 】

[This is a planet without life, maybe it can be refined into your golden elixir. 】

As a result, my path to immortality gradually became strange.

“Tiandao? Isn’t this the spiritual creature that builds the foundation of Tiandao?”

“There are so many desolate planets, let’s refine them into golden elixirs!”

Build the foundation with the way of heaven and refine the stars into golden elixir.

My name is Qi Yuan, the origin of all things!

…

My name is Jiang Lingsu. I joined Qise Peak with an ulterior motive. My senior brother has a problem with his head.

He doesn’t do his job properly, doesn’t like to practice, and is addicted to simulation games.

Senior Brother said, “Games are cultivation, and games can also create the world.”

One day, there was an extra sun in the sky.

I asked the senior brother what it was.

The senior brother said: “That is my golden elixir!”

This book is also called “Cultivation of Immortality: The Heavens in Jade Slips” and “The Golden Pill I Knotted is the Planet”.

- Description from novelbuddy

This is a story of a little man who walks forward silently, in awe, and strives to chase his dream.

- Description from novelbuddy

“From today onwards you are no longer my son. Get out” Being born into a noble family that is aiming to become the ‘strongest’, at his aptitude ceremony held on his 12th birthday it was discovered that Igni could only use fireballs. Igni who can only use beginner level magic was kicked out of his house.

With no where to go and without much magical ability, Igni is scraping by through life. However, one day he has miraculous reunion. “What? Is that Igni there?” “Gr-grandpa!?” It was a reunion with his grandfather, the man who was once called the strongest [Kyokuten] but was banished from his noble family because of his excessive womanizing…! “Grandpa! You said strong men are popular, but I can’t be strong!!” “Igni, listen carefully. Strong men are popular but, hard-working men are even more popular!!” “Grandpa! I’ll try my best!!!” Igni whose parents who banished Igni from the house, didn’t yet know of his obsession with being popular under the guidance of the strongest [Kyokuten] magician…!

“Igni that magic!” “This? It’s a fireball” “With this you can aim for [Kyokuten]! Come back here!!” “Nobility isn’t popular” “What are you saying?” This is a story where a young magician becomes the strongest by honing his skills all in order to become popular.

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.