Maou Gakuin No Futekigousha - Chapter 221.1

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.

Knowing she married a wrong guy, what would she do to deal with the subsequent marriage lives?

In order to pay for her brother’s medical expenses, she had to replace her own sister to marry the rich family's elder son . She always thought she was married to the elder one, but she did not know her husband was nominally the younger son He Yi Ning.

He Yi Ning, the real heir of the rich family, the ruthless business emperor, the ruthless workplace tyrant, and her sister’s dreaming husband. When she found out that the person who married her was He Yi Ning, she stunned and asked, “Shouldn’t i be your sister-in-law?” He smiled charmingly: “Are you unhappy with your husband?”

“That monster’s prefix is two hundred meters long?!”“It’s back. Who can stop it?”Isaac never planned for Celestia: The Eternal Realms to change his life. The game promised 100% immersion, a completely realistic world powered by quantum brainwave interfaces. But the moment he entered the game, Isaac was thrown into an entirely new world, no longer the player, but the played. His character, a “Lesser Hyena-Wolf,” came with the dreaded “Weak” prefix, reducing his stats by 20%.Isaac quickly realized that this wasn’t a game he could simply log out of. It was his new life, and there was no escape. To survive, he had to evolve, to fight, and ultimately, to conquer. He knew the game inside and out, but this wasn’t the same reality he’d logged into. This time, he would have to become the monster, instead of fearing it.Every step he took, Isaac grew stronger. He realized that monsters weren’t bound by the same rules that governed the players. He could evolve, gaining new powers and unlocking Monster Reputation. With every kill, every victory, he unlocked a new level of power. The prefixes that marked his growth—Normal, Strong, Especially Strong—were a testament to his evolution. And the players began to whisper.

[Mature content.]

Chloe Carlson, 35, was a married woman living with her cheating husband— Vincent Gray, and their daughter— Mackenzie.

Her failing marriage led her to file a divorce after 10 years, but her husband refused to sign it.

“I know what you want Chloe, you want my money after we divorced. You want to take everything from me and I will not let that happen!” Vincent accused.

“I don't need your Money, Vincent! I just want to take Mackenzie with me and leave!”

At last, she left her bastard husband without taking a cent from him. She was going to carve her own path in life and give her daughter the best in the world.

However, things aren’t working so well with a single mother like Chloe. It was difficult to find job because she was a housewife without qualification for a long time. Thus, in desperation as she needed to care for her daughter, she only had one way out.

She contacted her brother-in-law— Vernon Phoenix Gray, 25, a young, heartless playboy, who happened to be the CEO of a skyrocketing company, asking him for a job in this tough time.

“A job? That's not an issue. You can work as my personal assistant and take care of all my daily needs.” Vernon smirked and leaned in. “Especially in bed,” he whispered in her ear.

—

Would Chloe fall into the hands of her evil brother-in-law and become a slave of his whim?

Or would she return to her abusive scum husband for their daughter’s future?

—

Note: There is an age gap in this story,

Chloe is 35 years old.

Vincent is 35 years old.

Vernon is 25 years old.