My Understanding Defies Heaven: I Create Laws and Preach In the Heavens - Chapter 789: Am I the greatest calamity for the legen

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.

Well-known Composer Fang Zhao was in the glorious stage of his career, when the Apocalypse arrived; After finally experiencing the bitter difficulties of a thousand dangers, when the Apocalypse was simmering down to an end, he collapsed; When he opened his eyes, he was reborn in a New World, 500 years after the end of the apocalypse, in the body of a student who had been dumped barely after graduation, who had been cheated of his hardwork barely after he started working…

The World of the Future, Virtual Idols PK Real Idols

“Every time background music plays in my head, I feel like there is nothing to be afraid of.” —Fang Zhao

Toward the end of the apocalyptic period, Fang Zhao lost his life. However, instead of dying, he found himself 500 years later in the body of a young and aspiring composer who shared the same name. Having received a second chance at life, Fang Zhao sets out to achieve the previous owner’s dreams.

Armed with the experience of living through an apocalyptic age and his profession as a composer before that period, Fang Zhao uses his talent, wits, and knowledge to make his mark in the entertainment industry of the future.

- Description from Novelupdates

The rivers and lakes carry wine with swords, the waist is slender and the palm is light.

The young man carried a long knife on his shoulder, and hung wine on his waist, striding forward, but the rivers and lakes in his heart were vaguely visible.

Turning a page in the book of troubled times, the rivers and lakes have been raining nightly for decades.

Looking back suddenly, the world has been shattered.

- Description from novelbuddy

Xiaofei finds herself alive again inside the body of a beautiful young lady from the noble Lin family owning the same name as her.She was blessed with a peerless face, worthy of winning every men's heart and gaining women's envy in her previous life.But she foolishly fell in love with the prince, and was destined to die at the hands of her own beloved person.Even in this new life and body. Evil schemes and scandals won't let her escape even after her rebirth hence,she starts to do the same. Be evil and ruthless to those who went against her.Men and women needs to be bought.Golden Throne has to be passed over.Empire must be conquered and torched down.And hearts needs to be snatched.Xiaofei swears to overturn the world and slay her enemy. With a cruel era like this, one can only forcibly try to make a shell and protect oneself from harm.However, who would have thought that a man full of viciousness an arrogance that could pierce the sky would suddenly barge into Xiaofei's life? And would shamelessly whisper next to her ear, “Your enemy is my enemy and your wish is my command. However, I also have another wish that only you could grant for me.”“That is to have my wife for breakfast, lunch, snack, and dinner.”Xiaofei: “……”