Reborn With A Technology System In A Fantasy World - Chapter 224: Planetary Barrier

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.

Chu Jiao had always suffered from the quick changing nature of human relationships since little and had never tasted the feeling of being doted on. She was suddenly informed that her existence was only a few strokes of a pen in a novel. All her suffering was set by the author in order to make the male and female leads succeed.

She wasn’t willing nor could she accept the truth.

For vengeance, she bound herself to the “Supporting Female Carnal Desire System”. In order to survive and go back to the original world, she needed to kick down the female lead and take on the mission of catching the male lead and to clear the conditions, she needed——bo-body fluids?

Originally, she only planned to use her body without the intention of losing her heart but she never imagined that she would over and over again meet people that would carefully place her in the palm of their hand and spoiled her dearly.

They paid her with sincerity so she might as well return it with deep feelings.

Ultimately, she discovered that everything was actually love.

As the stars move and the time turns, you’ll like me no matter what I look like.

The celestial celestial beings who lived for more than 100,000 years were born and reborn in a small monk in a human world.
His motto: “It’s not as good as a medicinal medicine for ten years of hard work.” “Even if you practice a copper-iron bone, it’s not enough for my soldier’s attack.”

- Description from Novelupdates

'I'm not an ambitious person,' is something Reiner often says. He just wants to hang around with the Straw Hat crew, traveling the world while collecting the souls of the dead. From Kuro... Arlong, then to 'Old Sand' (Crocodile)... the Golden Lion (Shiki)... As he gathered more and more, the 'style' started getting progressively weirder.A demon with goat horns and a snake tail? Okay, maybe I can understand that. But a 'Chainsaw Demon'? What the heck is that? And where did you even pull this 'Sukuna' from?!When the Summit War kicks off, Sengoku and the Three Admirals stare at Reiner, who is sitting calmly upon the execution platform.'What? You're saying these incredibly strong individuals are undead beings controlled by him?!''How is that possible! Isn't he just some handyman doing chores for the Straw Hat crew?''Seriously, man... You call *this* logistics?!'Hearing this, Reiner gets annoyed: 'If doing literally every kind of job isn't called logistics, then what is!?'------(Story follows the Straw Hats' journey + original plot elements. The main character is neither overly righteous/naive nor does he turn evil/dark.)