Path of the Extra - Chapter 313: Pink Banana

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.

Fortune Telling, a mysterious technique, can also be said dangerous because it can change the catastrophe and make it auspicious…

Teacher: Don’t give me these useless papers to me, have you finished answering your test paper?
Lin Qingyin took out a tortoiseshell: Teacher, can I use divination to get the answer?

Lin Qingyin, the master of fortune-telling, didn’t succeed in the Thunder Tribulation when she tried to ascend. When she woke up again, she became a high school student. Lin Qingyin, who was not afraid of Thunder Tribulation, looked at the thick test paper in front of her and shivered. Only a thousand years had passed, how could the world become so scary!

Song Cheng transmigrated and became a blind errand boy in a medicine shop in a remote town.Fortunately, after he found a wife who did not disdain him, his “Golden Finger” also followed.Demons and ghosts roamed the Chaotic World, Profound Techniques went with Occult Sciences, Divine Weapons dazzled the cosmos, the Yin and Yang were inexhaustible.Song Cheng did not seek to dominate as a king, he simply wished to live his life well....This is the story of a person with Longevity, who walked through long years and witnessed innumerable Dynasties.

I returned to the past to become an actor, instead I reincarnated as a Third-Gen Chaebol (rich conglomerate family).[Winner of the 7th Korean Web Novel Competition]