MTL - Her Majesty’s Modern Harem - Chapter 99 】

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 protagonist, Punk, is a cautious, cold-blooded, and ruthless Mage.

His goal is always his top priority, over feelings or morality. When unnecessary, he doesn’t like to act like pigs to eat tigers; there are almost no life and death struggles, sometimes risky but steady progress. No strong enemy everywhere, Instead, Punk is always a strong enemy of others.

And he has a very keen interest in the secrets and teachings of the Netheril civilization.

She, the top goddess in the showbiz, officially announced her marriage, with her husband's identity remaining a mystery.One day, a news story went viral claiming that she was seen entering a villa with a strange man in the midnight and didn't leave until morning.Someone recognized the man as a financial tycoon, who is mysterious and low-key, and no one dares to offend him.That day, she clarified the rumors during a live broadcast, “It's all rumors. Please don't misunderstand. We are just friends.”Just then, he himself stepped up and said, “That's right. We're just friends for now.”...Everyone knew that their marriage was just a commercial arrangement devoid of any real emotion; otherwise, he wouldn't have left his wife to go abroad for two years right after their wedding.Just when everyone was waiting for their divorce, a secretly shot video suddenly went viral online.In the courtyard, the man who was always casual, proud, and superior, knelt on one knee in a pious posture, massaging the woman's ankle. His low and sexy voice captivated everyone watching the video as he said, “Sweetie, would you like to remarry me?”Damn! It's so sweet!

Anne, a shy and introvert woman, was in love with Denis for ten years. But Denis had someone in his heart. When his girlfriend left him to pursue her career, he finally noticed Anne and asked her to be his girlfriend.Anne stayed devoted to him for three years, but Denis cheated on her with his first love. Worse, his scheming ex-girlfriend killed her.Fate gave her another chance. Anne was reborn. This time, she vowed to take revenge on everyone who had hurt her.Augustine, the CEO of the Sphere Group of industries, was powerful and wealthy. But he died from his family’s conspiracy.Reborn, he was determined to punish those who had schemed against him.In his past life, he had failed to protect Anne, his savior. This time, he vowed to love her and keep her safe with his life.But Anne no longer believed in love.~~~~~~~~~“Will you marry me?” Augustine’s eyes sparkled with anticipation and nervousness.However, Anne was calm. “Yes,” she replied blankly. “I’ll marry you. But don’t expect anything from me. Love is the last thing I can give you.”He smirked and took a step closer to her. “Miss Clair,” he pinched her chin, “are you sure you won’t fall for me? Can you resist my charm?”Anne’s breathing hitched, her stomach fluttering. The challenge in his eyes and his husky voice threaten to shatter her resolve to never fall in love again.“Let me promise you one thing: in this life, I’ll love you, cherish you always. All I want is your faith.”