Undead Mage: I Have a Skeleton Clone - Chapter 52: Black Iron Skills [Brutal Strike]

One ant like mountain boy.A long path of cultivation filled with difficulties.A fantasy cultivation world filled with wonders.A young boy named Zhao Jiuge lived with his adopted grandfather in a remote village at the foot of a mountain. Their lives were difficult but they were happy to have each other. However circumstances soon force Zhao Jiuge to leave the comfort of his home and step onto the path of cultivation. Join Zhao Jiuge on his journey through the cultivation world so that he may have gain control of his own destiny!

Link, who traveled to the world of pirates, brought Doraemon’s treasure bag.

Just happened to meet Luffy who went out to sea, and has not awakened the true fruit ability of [Renren Fruit Illusory Beast Species Sun King Form], and he is still the rubber fruit Luffy.

That being the case, then I will follow this future One Piece, even more Liberation Warrior Joey Boy, the future Sun King *ka! !

Let’s enjoy the magnificent style of this pirate world together! !

In the process of traveling, all kinds of props also showed a powerful effect from Link’s hands! !

Luffy, actually [rubber fruit] has another name, do you know?

Hawkeye, are you the strongest swordsman in the world? 【Famous Knife·Electric Pill】Learn about it! !

Kaido, do you have the strongest animal army? I have some good flavors of 【Momotaro Rice Balls】, you can try it!

Im, do you want to destroy the world? 【Earth Destruction Bomb】Do you want it for you..

- Description from novelbuddy

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.

Roy died during a war against the Evil God Cult, but somehow, he returned back in time to 30 years in the past where he was just a boy who awaken his summoning magic.