Who Designed This Underworld Dungeon? - Chapter 4 - : Here Comes the Molten Furnace Knight!

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 fat and ugly Nora Smith is the laughingstock of the town when her fiancé breaks off their engagement.He says, “The sight of your gigantic face and thunder thighs disgusts me! Don't ever pester me again!”“What an idiot.” Nora scoffs and turns around, her lips curling up into a smile.Later, when Nora successfully slims down, she returns as an astounding beauty.Her ex-fiancé comes to her bearing flowers and begs, “I was wrong, Nora. I’m willing to do anything as long as you come back to me.” Nora rests her chin in her hands and smiles as she replies, “Real men don’t dwell on the past.” Angered, he says, “You’re just a dimwit saddled with baggage that I dumped, Nora. No one will want you except me!”But following that…A young and popular singer tweets: “Nora Smith is my goddess!”An internationally renowned surgeon asks, “Are you free tonight, Nora?”Even the rich and influential hotshot whom everyone is scared of comes forward and says, ”I can take care of my wife and children myself, thank you very much.”

Life is often full of curveballs. It likes to keep you on your toes.But what can a regular guy do when he gets booted to a world full of gods, dragons, devils, angels, yokai vampires and everything in between with only the clothes on his back and a reality-bending gacha behind him?His best apparently.

It wasn’t until he paid a huge price for giving up emotions that he realized how important they were to practice martial arts.

In his previous life, in order to become a master, he had given up all his emotions and became a ruthless expert. But in the end, he realized that it was meaningless living as a person without any emotions. Before he died, he regretted a lot and made a wish that if he could be reborn, he would never be a heartless person again. He would be a person with feelings, a true person.

He had actually been reborn. In this life, he had adopted seven orphans, and each one was a genius material for cultivation. However, he could not cultivate in the beginning, so he had to keep selling off his family’s assets in order to maintain the children’s education and living needs. When he remembered the memories of his previous life, the time he had spent with his children had made him feel the great power of love even more. Through his experience of emotions, his cultivation progress in this life was incredibly fast. He cultivated together with the children, searching for treasures, and even helped many people succeed in cultivating. In the end, the battle began, and he became the publicly acknowledged strongest expert.