Resetting Lady - Chapter 181

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.

Unlimited opening, unlimited power! The mutated mobile phone has a magical app download! All kinds of buildings, can rise to the sky, can sneak into the sea, can be hidden… hidden secrets of the big!

Tang Zhen’s ability to build a city is… Building a city, playing with explosives, crushing the ground and grabbing the ground.

Tang Zhenduan sits on the top of the mountain, and at his feet is an endless floating city, guarded by dragons, surrounded by angels, and countless giant guns stand in the sky!

In the depths of the ocean a million miles ahead, it is another big 6-level building that is waiting for his conquest!

- Description from MTLNovel

In a world where dungeons loom like dark secrets and monsters stalk the land, Rem’s awakening shattered the status quo. A surge of raw power flooded his veins as the Monster Monarch System bound itself to him, unlocking a terrifying potential.Each heartbeat echoed with the promise of countless souls waiting to be absorbed—skills, abilities, and monstrous strength ready to be claimed.Fuelled by an insatiable thirst for power, Rem set out on a deadly quest, driven by one singular goal: to rise above the chaos and stand at the pinnacle of the world. With nothing but the deadly abilities granted by the System, and a burning will to crush any who dared stand in his way, he carved his path through savage lands and ruthless mages.The hunt for strength never ends. The battle for supremacy has only just begun. Rem’s eyes are set on the throne of the Monarchs, and the Monster Monarch System will ensure nothing stands between him and his destiny.The grind was eternal...

After saving one world from a demon god and earning the trust and admiration of a perverted goddess who wants to be his plaything, Sol's terrible luck causes him to get summoned again to another world with her almost as soon as he returns to his own.However, this time around he refuses to take on the role of a hero.Instead, he decides to challenge a pantheon of gods as a side quest while living as a simple and misunderstood man under the protection of his goddess who took his place as hero. Unfortunately, even without trying Sol can't avoid attracting trouble and is constantly getting dragged into epic battles against the gods without even trying because of his cocky personality and bad habits.But that's fine too, if the gods want to fight then he'll gladly take them on and plunder them into ruin!