Shura's Wrath - Chapter 787 Demon Emperor x 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.

Lynn traveled to a magical world similar to the European Middle Ages but possessing magical powers.

Here, magic can affect and control elementary particles.

So…a scientific theory is a magic formula!

Wizards called spellcasters who are actually scientists, under the siege of the Holy See, struggled to explore the truth of the world, until the arrival of Lin En, which set off a renaissance of an alien version…

(PS: The 2 million-word work “Hogwarts Bloodline Wizards” has already been completed, and the quality is guaranteed!)

- Description from novelbuddy

“One Generation Immortal Venerable” Luo Chen was attacked and reborn and returned to Earth.

He is an ordinary person, facing the contempt of his girlfriend, the ridicule of his rivals, the miserable life of his parents, and the threats and provocations of the rich and young.

He vowed to change the injustice of fate, stand on the pinnacle of this world, and tell everyone that Luo Chen had been here.

- Description from MTL

Agent Selene and Agent Helios had always been at each other’s throats, competing as the top agent for the secret organization “Mythos.” But that competition would have to stop as they were suddenly called to cooperate for the hardest mission there ever was.“Agents, both of you have been chosen to work together and go undercover to infiltrate the biggest, most dangerous, and longest-running syndicate there is—Kraken….”“Sounds fun. What will be our cover?”“A married couple.”“Oh, a married—WHAT?!”Having no choice but to put a temporary truce on their feud, they set out to complete the mission. However, when the mysteries started completing themselves like a puzzle, their once friendly rivalry just turned into one hell of a reality. Driven by the ghost of their pasts, they found themselves pointing the gun toward each other.Will they choose the path of revenge draped in cold blood? Will their love be greater than the scream of justice and vengeance? Or perhaps, there’s something more that’s carefully hidden in the dark?