Primordial Cultivator - Chapter 5: Choosing a Technique

Long Fei, a cross-timer and doujin, is an otaku who traveled to another world. In the original world, he was an otaku fan of Gundam and military science fiction.

He died in an accident and was reincarnated into another world. The Gundam works he had read before his death and the techniques in various military novels could be brought to another world.

How would he use the Gundam that Long Fei created? What waves can be caused in this different world?

Having found herself caught in a dispute between two goddesses, follow Olivia as she ends up being transmigrated to a strange new world called Khallasia as another species.

This world contains many different races, from humans to elves and gnomes to beast-kin, along with monsters such as goblins and ogres.

Starting anew in this world with no possessions, she will try to live her life in a world that vilifies the races that make up her species.

Her journey will include having to learn to fight in a world where death is frequent, wars are brewing, and slavery, while illegal, is a common occurrence.

She will face many foes, from wild animals to full-fledged monsters, as well as bandits and robbers to knights and adventures, while she tries to find a place to call home.

With only her appearance changing, her mentality to do good deeds remains the same.

Whether this can continue in this new and more violent world is another story, especially since the urges that plague her species will soon start to plague her.

Warning: This is a harem, yuri novel where the MC is also a futanari.

One day he suddenly found himself in hell.
All he had was the desire to live and a predation ability.
From the first to the ninth thousand circles of hell, he absorbed dozens, hundreds of thousands of demons.
Even the seven great dukes of hell bowed down before him.

– Why would you wish to go back? Doesn’t his highness have everything that’s in Hell?
– What do I have?

Nothing to eat, nothing to enjoy!
The only things in Hell are the barren lands and terrible demons!

“I’m going back.”

After ten thousand years he returns to Earth.

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.