The Simple Life of Killing Demons - Chapter 45Book 10:

Ken was about to take his own life, after he had experienced a very tragic emotion. However, he was stopped by a mysterious cyan screen before his eyes.“What is this?”The Cyan screen displayed a message. It called itself the Guarantee System, and told him that it would guarantee whatever mission he desires. And through these missions he was to earn a reward, and these rewards were to be massive if the mission he takes, is relating to a… female.Then the question followed…[What will be your first mission?]At that moment, Ken knew… just the right thing he wanted. With a smirk on his face he said.“I WILL GET ALL THE LADIES I WANT!”Hehe'Disclaimer: This story is a work of fiction. All characters, events, and organizations are imaginary and any resemblance to real persons or events is purely coincidental. The narrative is intended for entertainment purposes only and does not reflect real-life occurrences or perspectives.Enjoy!

I didn’t know this was a world inside a game. And I didn’t know my master was a mid-boss. “No way… wasn’t she supposed to self-destruct because of her personality?!” …I’m sorry.

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.

Admist the turmoil of a blood-soaked battlefield, General Hua Ren was perched on a horse, his once-pristine uniform now a canvas of rebel bloodstains. Lifeless bodies, a macabre mosaic of soldiers and rebels, lay strewn across the ground—some severed, others trampled beneath the hooves of horses.In the distant backdrop, a bomb erupted, rattling the battlefield, and in that fleeting moment, the General detected the scent.His Alpha.His heart raced as his gaze locked onto the most frigid, intimidating eyes he had ever encountered, and a sinking feeling gripped his stomach.Sheng Fei, leader of the rebellion, stood tall amidst the chaos, a sinister smirk playing on his lips. In a chilling display of power, Sheng Fei swiftly ended the life of a soldier, his eyes never leaving Hua Ren.The stark reality unfolded before Hua Ren, solidifying the bitter truth that their connection was entwined in the threads of enmity.He could never be the Omega to a Rebel AlphaOr so he thought.