The Lucky Star is Sweet and Wild - Chapter 136: Deed of Sale

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.

Transmigrated to a wizarding world.'But... what about the promise of wizards pursuing truth?''Why is it just a bunch of greedy people who seek power!'...Passing guests, please come in and take a look; if it's not the right fit, then feel free to leave.

"Your bed is cold," spoke a voice in the room that had her eyes go wide in fear. Nervously, she turned around, gulping softly to see a shadow on her bed as if someone laid down there. The man who had been lying down sat up emerging out from the shadows where he had been waiting for her.

Richard, who was born with a broken body, thought that this medieval world was outrageous enough, with knights, dragons, witches, and giant beasts.But he didn’t expect to meet Cinderella right after gaining territory. Her 1.8-meter-long legs were so charming that they could crush people to death.It turned out that this was a fairy tale world, or a dark fairy tale.Without saying anything, Master Richard directly helped Cinderella fill up her puffs.Wait, why does the system prompt that Cinderella is a witch? Or a yandere?The 36D dangerous Little Red Riding Hood, the white and tender Snow White, and the long-sleeping Sleeping Beauty are all witches.Different witches can bring different benefits to the lord Richard.Yeah!The master is going to overthrow the world, establish an empire, collect witches, and fill up!