MTL - I Have A Demon God Simulator - Chapter 15 die together, the copy ends

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.

In her last life, Qu Zhi tried her best to be a good wife who was sensible and did not cause trouble, a filial and good daughter who helped her family, and a good mother who accompanied her children. However, Qu Zhi worked hard and suffered all her life. When she was about to die, she realized that in the end, all she got back for her hard work were complaints. Her husband complained that she was an idle, rich wife all day long who wasn’t satisfied with her happiness at home, and that she was a greedy woman.

But after decades of marriage, her husband had a firm, deadly hold on all her money, and she didn’t even have a dime to her name, nor a property to call her own. Every time she asked for money, he would trample all over her self-esteem. Her husband’s cold and sarcastic words made her unable to lift her head, and his friends would demean her while drinking wine, making her tremble with anger. This man had once said he would take care of her, yet he turned a blind eye! Those people focused on her happiness as a topic, and made a joke out of it.

Even her three children resented her for her uneven love towards everyone, and their relationship only became more strained as time passed. She had spent her whole life as a loner, and she had nothing. Lying on the operation table, Qu Zhi thought that if she could do it all over again, she wouldn’t be a housewife. She wouldn’t have given her second daughter away, and she wouldn’t take care of her blood-sucking relatives.

She wouldn’t marry her indifferent, cold husband either! When she next opened her eyes, she was back to twenty years in the past. Her eldest daughter was still in elementary school, and her second daughter had been in her belly for several months…

I may be a virtual YouTuber, but I’m practically an office worker. You’re saying I have the most subscribers in the group, except for the boss? Well, all those subscribers are on the official account, so it doesn’t really mean anything. Why haven’t I made an official debut? … So, what can you actually do about it?

It’s said that the prince of virtue had almighty martial arts. It’s said that the prince of virtue had the most handsome appearance in the world. It’s said that the prince of virtue was brilliant. But all was legend! A fire ruined his wonderful appearance and his legs. Even the talented bride under their marriage agreement were replaced furtively. Ye Liu-li was his bad-luck substitutive princess. She went a long way to graduate from Medical University and had her internship with pain and joy. Who knew that in order to save a suicide patient, she fell off the building and crossed time into a “chessman” of prime minister. She had also been married to the disabled prince replacing her elder sister. On the wedding night, when most other couples were having their romantic night, she was thrilled. It didn’t matter. Revenge never came too late. She would never let go of any of them who entrapped her or harmed her.

- Description from Novelupdates