My husband Can Cultivate - Chapter 44: Character issues!

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 dark BOSS, who had the fortune of becoming Earth’s last living human, brought with him his loyal, second last human to die, little brother to be reborn.

The eve of her sister's wedding, an accident happened, the responsibility her sister abandoned, should she bear it? She's not a professional scapegoat!“Um, it's my sister who wronged you, it has nothing to do with me.”“So, is there a problem with making you, her younger sister, repay the debt?”Faced with the man's dominance, May Morgan was on the verge of tears without shedding any.“But, we haven't had a chance to get to know each other yet!”“Then let's start getting to know each other now!”

The year is 2236 and the Deep Dive Virtual Reality Massive Multiplayer Online Role Playing Game Ancients World is the most advanced game of its type ever created. Now that DDVR technology has reached the stage of commercial consumers everyone is addicted to the games available. A person who spent 5 years in the game has been reincarnated in his younger self as a request from a world item the game provided. Not everything is known about Ancients World since he only spent 5 years playing, so things will change this time around.

Many people don't really know what the game really provides till everyone with an internet connection is playing. It is the only way to survive in the coming years because of how special the world is.

Cera Adamo is a young man who is almost 20 and he is the one that found the world item that granted him one wish, something that saved his life in a last chance effort. He chose to go back into the past so he can get everything he needs for his family, he doesn't want them to be dirt poor like they once were and this is his way to secure that it never happens again.