Secret Society: Raising Calamity Class Disciples - Chapter 40 Revelation

Leiyin accidentally crossed into the One Piece World, and accidentally obtained the Naruto System.

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.

WARN:

SLIGHT ROMANCE!! NO HAREM!! FAMILY GENRE!!

Filled with political intrigue, warfare, adventure, friendship, and betrayal.

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Synopsis:

I transmigrated into a novel that I read years ago as the second Prince of the Chrono Empire and was fated to be killed by my half-brother, the First Prince at the age of 12.

So, What's my role in this novel?

Am I the villain?

Am I an insignificant extra?

Am I the protagonist? Nah, definitely not.

But, why bother?

Following the novel's plot isn't my style and I won't let it dictates my life.

Regardless of my role, I am the main character of my own life.

In the waves of steam and machinery, who could achieve extraordinary? In the fogs of history and darkness, who was whispering? I woke up from the realm of mysteries and opened my eyes to the world.

Firearms, cannons, battleships, airships, and difference machines. Potions, divination, curses, hanged-man, and sealed artifacts… The lights shone brightly, yet the secrets of the world were never far away. This was a legend of the “Fool”.

- Description from novelupdates