Constructing-Style Wizard - Chapter 422 - : 145. Rational Revenge_2

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.

In the year 2050, the world changed drastically when mysterious portals began to randomly appear, bringing with them terrifying monsters dubbed Transcendents and unimaginable dangers. Humanity nearly collapsed entirely, and the survivors took refuge in cities and secure areas, protected by individuals with special abilities called Awakened. These Awakened were the only humans capable of entering the portals and exploring the unknown realms on the other side, in search of resources, treasures, glory, or answers.

Kaito, on the other hand, was just an unhappy young man who found solace in a classic online game called Mortal Tower, where he created an avatar of a powerful and charismatic villain. While many hoped to become Awakened, Kaito believed that even if he lived a million lives, he would never have the fortune to become one. However, one fateful day, fate played a trick on him. He woke up and naturally looked at his reflection in the bathroom mirror, but he could hardly believe what he saw. Kaito strangely resembled his Mortal Tower avatar.

And to make things even better, Kaito somehow inherited the purchasing system from Mortal Tower, which would allow him to buy all kinds of items, from rare abilities to legendary equipment!

Now, Kaito has to deal with his new life in an almost post-apocalyptic world full of opportunities, but also with a new great challenge called Celestial Abode, something even greater than the classic dungeon-crawling portals, something so similar to the early floors of Mortal Tower that it scares him. However, Kaito sets a goal for himself: conquer the top of both worlds, but he doesn't know it will cost him his selflessness.

(Obs: No, he's still not a villain at first. There is a development for him to become a villain.)

……………………………………………………………

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She is an international ace agent,An amazing doctor, God of Assassination, However due to a box she accidentally rebirthed and became an ordinary junior high school student. Weak and incompetent, That scum woman wants to put her head into the toilet. The gambling father, borrowed a lot of money and now they are being chased by loan sharks for debt? There is also a group annoying people in her life. The reborned Yunxiao sneers: I want to know how to write the dead words! She returned from the wind, high-profile attack, if people dared to bully me, they are courting death!

[Ding, your frog was afraid of your death, so he went on a trip overnight and stole a shelter for you! 】

…

Reborn into a world of global catastrophe apocalypse.

In the face of global recovery, zombies, fog, meteorites, prehistoric creatures, glaciers, earthquakes, acid rain and other devastating global disasters, the only thing Ye Su has to do is to survive.

Unexpectedly, he got a traveling frog when he arrived. The frog was afraid of Ye Su’s death, so he simply stole a shelter!

Ye Su: “???”

But what’s even more outrageous is yet to come.

[Ding, your frog is afraid that you are not stable enough, so he stole the source of fire for you]

[Ding, your frog was afraid that you would be bitten, so he stole the antiviral potion overnight! 】

[Ding, your frog stole the Zanpakutō for you! Additional Asura – Blade Skill! 】

So, when everyone was avoiding zombies, disasters, despairing for food and water, Ye Su had already carried a big knife, drove a car, and came out for food!

- Description from novelbuddy