MTL - Marvel’s Disassembler - Chapter 27 Taboo killing skills!

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 Elf Kingdom', the War of Gods 1000 years ago caused the fall of the World Tree. In a world where true gods rule, the fall of the elven civilization came soon after.A 1000 years has passed, the new World Tree is now reborn.Eve Yggdrasil, the Mother of Nature, the Goddess of Life, the Great Ruler of Elves, armed with the ability to connect to the Internet on the blue planet.He (yes, He) now must rely on players from the blue planet to help his goal of reviving the past glory of the elves and the World Tree.

Yan Sagawa is the top academic master in the world of Conan, known as a national treasure talent.

No one knows that he is actually a time traveler, carrying the most powerful Xueba system.

But he also has troubles recently, and he has awakened a second system — the Great Onmyoji system.

Whether to believe in science and become the father of all mankind or believe in theology to become the god who controls reincarnation, this is a question

. . .

After thinking for a long time, he decided that he wanted them all!

Conan: This is impossible murder! Is there really a ghost?

Sagawa Yan looked at the shikigami flying in the sky and smiled without saying a word.

Kidd: What kind of magic is this, how could you hide it from my eyes.

Sagawa said: This is science, you scumbag

- Description from novelbuddy

In a world where imagination births power—called uncos—Amari has none. Branded cursed and cast aside, he escapes slavery only to find himself in a society ruled by celestial artifacts, divine oppression, and fractured ideals. As gods wage silent wars and cities shimmer with false hope, Amari must navigate a reality where strength is everything—and he has none to claim.But chains don’t just bind the body. They shape the soul. And Amari’s soul is beginning to stir.With nothing but grit, loyalty, and a defiant heart, he walks the line between myth and mortality, hunted by secrets older than the stars. In a tale of betrayal, survival, and the quiet power of choice, Ragnarök, Eternal Tragedy asks: Can a boy without magic rewrite the fate of gods?