MTL - Godly Stay-Home Dad - Chapter 691 Harlan family

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.

This novel is also known as Transcendental Mechanic

What do you do when you wake up and find yourself inside the very game that you love?

What do you do when you realize you that you have not only become an NPC – you have even been thrown back in time to before the game even launched!

What will happen when our protagonist’s two realities coincide?

Han Xiao was a professional power leveler before his transmigration. Using his past life’s knowledge, Han Xiao sweeps through the universe as he prepares for the arrival of the players. This is definitely not your typical transmigration novel.

- Description from novelupdates

A striking man of mysterious origin and peerless talent, he looks back at the world, in all its entirety, with utter disdain. And yet, in the treacherous and unpredictable ultimate formation of the Boundless Secular World, he guards a breathtaking ancient qin with broken strings, waiting silently for the destined one to arrive!

As one of the world’s top hackers, Yu Han suddenly died because she stayed up late launching an attack on a certain country’s firewall! She did not expect to transmigrate into a romance novel that her friend had arranged for her to read and become a female supporting character with the same name in the novel. Yu Han expressed her dissatisfaction. What right did others have to transmigrate into the female protagonist while she could only be a female supporting character? Wait a minute! Yu Han was suddenly excited because, in the novel, her fiancé was the top celebrity in the novel, Ji Jun.

He was also her favorite man in the novel because he was the only one who did not have a brainless crush on the female protagonist in the novel. Now, this man was her fiancé! It was rumored that the top male idol in showbiz, Ji Jun, had a crush on someone. His fans, “Impossible, I don’t believe it. Brother loves us!” When they heard that the person Ji Jun had a crush on was Yu Han, his fans, “ It’s impossible. Brother only treats Yu Han as his junior that he wants to promote!” During a variety show, Heartthrob Ji lost in a game of truth or dare and chose truth. The host, “I heard you have a crush on someone. Is it Yu Han?” Yu Han gave him a cold glare. Ji Jun answered, “No.” Snap! The red lights on the lie detector’s glared red. Yu Han, “…?” His fans, “…?” She was the star in the sky, while he was the star-picker.

Epilogue 1: “Shocking! The popular female star, Yu Han, sold her body to seduce a seventy-year-old man for the sake of stardom. Here is a picture as proof!” While the entire internet criticized Yu Han for her shamelessness, Ji Jun’s trust in her never faltered. He tagged the reporter and replied to him with two words, “F*ck you!” Yu Han read Ji Jun’s protective words in shock and was overjoyed. With the entire screen filled with curses, Yu Han started a live stream and taught the netizens how to photoshop photos and videos. At the same time, she also restored the photos that were circulating on the internet. The netizens were shocked that Yu Han actually had such skills! At the same time, after restoring the photo to the originals, everyone wondered how the man in the photo resembled Prince Charming Ji Jun so much!

Epilogue 2: The transmigrated Queen Yu had a headache. Yu Han knew that the Ji Jun in the book had a serious obsession with cleanliness. “Can we ask the director to do a cheat cut for this kissing scene? Aren’t you a clean freak?” The smile on Ji Jun’s face widened. “We’re not canceling that scene. Are you doubting my professional ethics?” Yu Han, “…” A certain female star in the same production crew just finished shooting a scene where she fell into the water. She looked at Ji Jun pitifully. “Brother Jun, I don’t have any strength left. Can you help me?” Ji Jun did not even look at her. “Sorry, I have issues with cleanliness.” Yu Han, “…?”