The Retired Hero is an Extra - Chapter 119 - : Trial of Might

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.

[You are now the Editor] The administrator said in a proud tone

“Okay... so what exactly are my duties as the Editor, I doubt I have to review people's work”

[That's the simple part, you edit]

“What?... I just edit, what does that even mean”

[That is up to you to figure out]

...

What do you do when you are given phenomenal power and authority over what is possibly, all of creation. Armed with a literal omniscient being as a servant.

Facing an unknown event prophesized to possibly end all life. Follow as David uses his newfound power and authority to survive and also save as many people as he can.

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Fu Shinan reincarnated an hour before the apocalypse. Fortunately, she received a system that could enhance everything! This made her a big shot in the terrifying apocalypse. To survive, she made the greatest amount of preparation in the shortest amount of time possible.

While taking revenge on scumbags and b*tches, she didn't forget when she rushed home to take her family with her in the previous lifetime. That was when she bumped into her fiance and stepsister having sex in bed. Her biological father even helped to hide it. In fact, he fed her to the zombies just to lure them away...

After reincarnating, she took revenge on these people and embarked on a new journey. Along the way, she met a well-rounded, handsome man, Ji Ju. Initially, she only wanted to live happily and not waste her life. However, she somehow became the owner of the largest base for survivors.

“Sorry, but I'm not interested in being the owner. I want to become the bigshot!” Fu Shinan exclaimed with a cold expression.

“Okay. In that case, I'll be the man who supports you. We'll set up the base and create a wonderful home for our future,” Ji Ju said.

Fu Shinan was enraged. She glared at the man who climbed atop her. “Get lost. Who would build a base on a bed?”

“Shh... I know you're tired. That's why we'll create our heir and let him do the work. You're still the big shot!”

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Dear readers! Without any ads, maybe you will prefer .

After a sudden and inexplicable transmigration, Maximus finds himself in a fantasy world where extraordinary power exists. But he is not without his advantages; he possesses a system that grants him the ability to become stronger as he takes on wives and birthed children.Determined to conquer this new world, Maximus uses his cheat to gather wives and birth children, building up his power and influence. As he gains more allies and resources, he sets his sights on the ultimate prize: ruling the world and surpassing even gods.However, the road to conquest is not an easy one. He must contend with powerful factions, rival conquerors, and unexpected challenges as he builds his ideal empire. But with his cunning mind, he is determined to succeed and become the greatest conqueror the world has ever seen.