MTL - Mr. Fu, You’ve Spoiled Your Wife Rotten! - Chapter 730 wake up

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.

Protagonist travels between different anime worlds to right wrongs and uncover his reason for being along the way.

- Description from Novelupdates

Shen Hua, the daughter of the Shen family that ran an embroidery business in Fengzhou, was pampered since she was a child. She had a pretty face and smooth, fair skin. Unfortunately, her body was weak, and she'd run out of breath after walking merely a few steps. She didn't have very long to live.The Shen family gradually faced its downfall, and her wedding was delayed again and again.Cui Yun, the eldest son of the Cui family, was a noble and stern man. He was entrusted to look after Shen Hua. Why not just marry her? He thought.Since Shen Hua reincarnated, she had focused all her attention on the embroidery business. She hoped to change her life and regain her former glory.When she heard about Cui Yun's decision to marry her, she fainted on the spot.After waking up, she turned him down with tears in her eyes. “I don't have very long to live. I don't want to waste your time.”Cui Yun was very considerate. “It's not a big deal. I know you feel touched, but there's no need to cry. Since you already depend on the Cui family, you might as well just become part of us. After you die from your sickness, I'll even hold a grand funeral for you.”Shen Hua felt hopeless. But I'm only pretending to be sick!***Cui Yun had many younger female cousins.Many of them had confessed their feelings for him, but he turned all of them down nonchalantly.“It's getting late. Please look after yourself.”Shen Hua had never met such a clueless man when it came to romance.One night, while she was on her way home, she took a shortcut and passed by the Cui family's courtyard. Cui Yun stopped her.He was standing near the entrance, and his sleeves danced to the wind.“It's cold outside. Would you like to come in and stay for a while?”

He is very cold and passionate, Mu Yanwang, who means what he says. He has always regarded women as dirt but she, he has only spoiled her.