I Punch the Tailed Beast Ball - Chapter 297: Shikkotsu Forest’s Sage Mode

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.

A petite and frail woman came to Donggong, and Chumei in Donggong didn’t take this abandoned woman seriously at first.

Who would have thought that she would occasionally feel the cold today, and she would be ill tomorrow, attracting His Royal Highness to take care of her day and night.

She took care of her, and took care of people on the couch, so angry that Zhongmei called her a shameless white lotus.

As the party concerned, Qin Zhao said: My ex-husband greened me, I turned around and hooked up with the prince of the dynasty, and robbed the prospective man of the third child. The first marriage is higher than the first marriage, is there any problem?

**

The crown prince Xiao Ce had few desires for half his life until he met Qin Zhao.

He thought Qin Zhao was pitiful and would not be able to live without him, so he let her live in the East Palace temporarily, day and night to keep her pampered.

Later, when he ascended the throne, every time he saw Qin Zhao’s ex-husband’s face, he would torture Qin Zhao’s soul every night: “Is my body still satisfactory to Zhaozhao?”

【Wear the book, double clean, sweet pet】

- Description from novelbuddy

After being reborn in a sci-fi ABO world, Xi Wei became the newly born son of the Imperial King. He thought, as the emperor’s son he could live a carefree and imposing life, but unexpectedly the First Prince is actually an omega? What the hell is an Omega?

There was an alpha who was born on the same day as the First Prince Xi Wei, the two children grew up together. When Xi Wei looked at the blonde child next door, he always felt that the boy was not pleasing to the eye, so as a child Xi Wei bullied him.

Until many years later …

Looking at the man standing in front of him who was one head taller than him, Xi Wei was dumbfounded.

–He tried to get out of the way, but eventually still fell into his childhood sweetheart’s clutches.

- Description from Novelupdates

This novel is also known as Retrograde Gaming

Due to not being able to buy a game helmet, diabolical Li Huailin made a determined effort and made his own game capsule entering into the new online game 《Heart of Glory》. But he didn’t think that he actually got his game character stuck as a bug.

Other people get experience from fighting monsters, he loses experience from fighting monster; Other people get experience and money from doing quests, not only does he lose experience from doing quests, he even loses money.

Right when he thought that he couldn’t play this game anymore, his character died once and his experience suddenly skyrocketed. And thus he was enlightened…

If you don’t seek death then you won’t die, to level up Li Hailin started his life of desperately seeking death.

- Description from Novelupdates