I Became A Flashing Genius At The Magic Academy - Chapter 403

There is only one Magi Craft Meister in the world. After the death of the last Meister over one thousand years ago, Jin Nidou was transported to another world in order to succeed her will.

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.

[The Golden Snake Sword was successfully strengthened, and the Snake Queen was summoned. ]. ?Snake Queen: Master, please tell me what you want!

[The skill ‘Evil Light Ghost Slash’ was successfully strengthened, and after summoning the ghost ghost. ]. what! female ghost? Then I’ll put you on maternity leave!

[The Yao soul suit has been strengthened successfully! ]. Um? Is this the Yao princess? Princess Yaoyao! Don’t get on me!

Zhou Han was surprised to find that the only SSS-level talent in the universe that he had awakened: infinite enhancement, was so awesome.

- Description from novelbuddy

Su Li, an ordinary person who lived for 30 years, surviving on social welfare as a laid-back slacker.Occasional pointless complaining and self-defeating philosophical platitudes didn’t bring any meaning to his 30 years.Until he was transported to another world…Su Li, who had no elemental talent, Su Li, who was labeled as useless, lived an unremarkable life.One day, Su Li picked up a person in distress and told them: “The reason you think light is important is only because darkness pervades the world. When light fills the world, darkness will become important.”The Son of Light Saint who was betrayed by the Bishop of Light— He’s right!He is the sage who guides people forward, the signpost standing before the people, my faith, my everything!He is not a god, yet he far transcends gods.Su Li saved an injured mute bird. As birds sang outside the window, he told the bird: “The reason people like things that make beautiful sounds is only because they happen to understand that sound. Because of ignorance, there is no sin.”The Level 9 demon beast Raven, severely injured by the Mercenary Association:— All people are ignorant and foolish, thinking that ravens represent evil, even labeling me as a natural disaster. I hate humans the most, but he is the exception.If the world is what he wants, I too will aspire towards it.Su Li told his young friend who wanted to go to the big city to strive for success: “Moving upward is human instinct. If one day you fall due to reality, please don’t hate yourself.”The friend who eventually amassed enough gold coins to fill a city:I once thought that a child from a remote countryside would never understand everything I pursued. However, heaven blessed me, allowing me to witness true great wisdom…