MTL - Ultimate Star Card Master - Chapter 507 golden wind

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.

She was a famous plastic surgeon in the 21st century, both at home and abroad. But one day, she transmigrated to become a young lady in the Prime Minister’s Mansion and got bullied. The concubine hung her up and beat her, forcing her to marry a fifty years old general as his second wife! But unexpectedly, she received an imperial edict and was asked to marry the emperor’s fifth son – the Evil King.

Who was the Evil King? A gunpowder explosion destroyed his appearance and one of his eyes. After waking up, Evil King’s temperament changed drastically. The handsome young man became a bloodthirsty and cruel tyrannical king. This was not even the most frightening thing. It was said that the Evil King had four wives, but none of them had lived over a month!

Last night, the Evil King’s fourth wife died. Today, she was tied up and sent to his mansion …

- Description from Novelupdates

“I never spent a dime from your debt, you both lost it gambling always…” Another slap landed on Astrid's face and this came from none other than her dad, Josh.“You ungrateful brat, it's only the request I am pleading for,” Josh let out and then a sardonic smile escaped her lips.She wiped the tears from her face and now stood from the ground.“I am not going to get married to a man old enough to be my father.” she declared firmly this time not avoiding eye contact with her dad that much.“What?” Josh's voice countered.“Why for once can't you love me?” She cried out her hands moving to her chest as she tried to hold in her tears.Josh moved closer to her, lifting her by her chin roughly, “Then do this one favor for me and save us from losing everything I have ever worked for,” His voice was a bit calm but stern, one could tell he didn't care about Astrid.********Astrid Daniels who is hated by everyone and is known as the faso of family is forced to get married to the man arranged by her father to protect his company from plummeting and also help in paying his debt.She refused but then was told by her dad that he would help pay for her mum’s surgery if she was doing his wish.Since she was a high school drop she couldn't get a good job to pay for her mum's surgery so she needed to agree to her dad’s proposal.On the day of her wedding ceremony with the older man, things turn around when she goes into the wrong hall and gets married to one of the richest men in their city and also her crush.What fate do you think awaits her?

Yuan Luoyi felt like she was a little hamster in a pit of snakes, with her family full of crazy villains, yet as the fake heiress she still focused on slacking off.

Dad was an arms dealer, Mom an ace assassin.

Eldest brother, business world’s killing god, with proxy syndrome.

Second brother, cold-blooded lawyer, zero moral sense.

Third brother, addicted to killing, born with antisocial personality.

Fourth brother, evil celebrity, who trained fans into believers.

Fifth brother, genius scholar, loves those pure white bones.

Yuan Luoyi didn’t know that because of her birth, the world gained five more brothers, not five more lunatics.

Those greedy villains also didn’t know, the one they wanted to kill was not an ordinary girl, but the most beloved little sister of five crazy bastard brothers.

The female lead has 99 lifetimes of memories, a system, harem darling + suspense, happy ending.