Primordial Sin System - Chapter 547-Lake of Fate

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.

Renea was trying the wedding dress, when suddenly the man rushed in the dressing room and held her neck tightly...“Bitch! Are you still trying to pretend innocent!” Jasper said as he tightened his grip on her neck and choked her harder. Then he used his other hand and took out the phone from his suit pocket and played the video of two people having sex in front of Renea…However, what was even more shocking, was that the woman in the video was, Renea Morris, however, the man in the video was not Jasper.Renea struggled to take a phone away from Jasper’s hand and tried to explain, “Jasper, it was not what you think… I… I can…”Jasper looked at Renea with his eyes full of disgust, as he said, “Let’s call of the wedding. I can’t marry a woman like you.” After saying that Jasper walked out of the shopRenea chase after Jasper...But then she sees Jasper passionately kissing her sister Kailey. And she hears everything, that her sleeping with strange men was all a plan of the vipers of the last two days, and that their goal was to get out of this stupid marriage. Even her adopted parents were also involved in this matter...They all do this with her because of the inheritance left by her grandfather...Renea heart was filled with anger and she wanted to expose their true colors to the public... However before she could do anything, Kailey had pushed her in front of the car and she got killed...However, when Renea open her eyes, she found herself sitting in the car with Kailey... She realized that she was reborn and went at the time when everything started...Renea looked at the people who had hurt her in her previous life and her lips curled up in a cold smile...She was back...However, this time... she was back for revenge...

Lin Yuan, carrying the “Door to Myriad Worlds,” transmigrated into the Great Universe of the Starry Sea.Here, the mightiest could obliterate star systems with the flick of a finger, and traverse millions of light-years in an instant.As a bottom-dweller, Lin Yuan could only rely on the “Door to Myriad Worlds” and his innate talent, “Against-Heaven’s Understanding,” to travel through countless worlds, silently growing stronger.【Your Against-Heaven’s Understanding allows you to cultivate the Muscle-Tenden Transformation Bible, comprehending the ‘Muscle-Tendon Transformation Blood Tempering Divine Technique’】【Your understanding is Heaven-Against, upon extending your comprehension to the Thunder in the Palm, results in the mastery of the ‘Thunder Creation Opening Technique’】【Your understanding is Heaven-Against, while observing the birth and death of worlds, leads to the insight of the ‘World in the Palm’】【Your understanding is Heaven-Against,, through studying the art of external incarnations, culminates in the ‘Self-Transformation Great Technique’】……In his unending travels, Lin Yuan ceaselessly grew stronger, until… he was unrivaled across all worlds.

In the winter of Taikang Year 3, a girl pays a visit to her future in-laws, the Ning Family of Beiliu, Yangcheng.

After her engagement was denied, the girl decided to hang herself in front of the Ning Family to show them her sincerity.

When the girl who had died opened her eyes once more, many people’s fates were changed forever.

- Description from Novelupdates