From A Stronghold NPC To The Final BOSS - Chapter 605 - : 604 above the rules

The Master of the Tai Yi Sect, Patriarch Xu Yi shattered the void, causing the entire sect to travel through to the interstellar era.

On the deserted planet, the disciples discover a new world:

The eldest senior brother, who specialized in forging, fell in love with mech building. The second senior brother found that alchemy could also be manufactured on an assembly line; The third senior brother fell in love with live broadcasting and was addicted to the Internet; The old Master Xu Yi cracked his whip and urged the disciples, ‘This world is so rich in spiritual energy, how dare you not cultivate properly?’

In the Immortal Cultivation Realm, Junior Sister Sa Sa, who had no spiritual root and powerful spiritual sea, was finally no longer distressed by her inability to cultivate: ‘Mech’s are really powerful!’
Double standard — Xu Yi: … Study it. Isn’t it just mechs, Sa Sa should have one too.

A little bumpkin from a deserted star came to the Federation’s First Academy.

Sa Sa, ‘Wow, the internet is awesome! Mech’s are awesome! Technology is awesome!’
‘You don’t need to cultivate to become strong in the interstellar world, I really love love love it.’

Students from prominent and powerful backgrounds scoffed, ‘Where did the bumpkin come from? Is there something wrong with the admissions system?’
They had no idea that the anchor who exploded onto the internet had a great relationship with the little bumpkin.

Sa Sa: ‘Third Senior Brother is secretly on the internet again!’

The elixir that the little bumpkin usually took and hard to find, the spirit sea boosting pills with no side effects, was actually worth a thousand bucks?

Sa Sa, ‘Second Senior Brother makes the most delicious sweet pills!’

The mech that the little bumpkin casually pulled out was actually the upgraded version of the mech that everyone was fighting over?!

Sa Sa, ‘Eldest Senior Brother will definitely save the best for me!’

The whole planet was abuzz: ‘What kind of divine institution was Tai Yi? How do I get in? Waiting online for a reply!’

- Description from Novelupdates

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.

“You’re the Demon King?”

In response to the woman’s voice filled with murderous intent, the man opened his mouth.

“No, I quit that?”

※ Demon King & Hero will show you the absolute limits of chaotic storytelling.

Shen and Ming, two top wealthy families, have married.

As the object of marriage, Professor Ming is obsessed with scientific research, education, and psychological construction and can’t extricate himself. He really has no relationship with the big devil Shen Tinglan!

The two of them don’t even bother to play every scene, and Ming Qianye thinks about being annulled by the Great Demon King all the time!

However, relying on the exorbitant looks, talents and abilities of both parties, CP fans come here uninvited, looking forward to their interaction every day, begging for dog food to fit together, and trying hard to find evidence of their love…

Professor Ming finally couldn’t take it anymore and sent a message to showdown with the big devil——

[Senior, I actually just want to have a fake relationship with you! 】

The Great Demon King: [Call me husband, I will have a real relationship with you. 】

Professor Ming frowned: [I don’t want to fall in love! 】

The big devil called directly: “What’s the matter? I just donated the laboratory and the teaching building, and last night I said that I performed well, but the next day I turned my face and refused to recognize anyone? Have you learned how to cheat money and sex?”

Professor Ming was shocked: “I didn’t, I… am participating in the show…”

Followed by ‘Duddu…’

That phone is hung up!

The audience in the live broadcast room exploded:

【Did the words just now come from the mouth of Mr. Shen, who is so handsome? 】

【How did Great Demon King Shen behave last night? Is it the color I thought it was? 】

[Can you describe the details? We don’t lack this traffic! ! ! 】

- Description from novelbuddy