One Child Two Treasures The Billionaire Chief's Good Wife - Chapter 4749

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.

In a world where the boundaries between dimensions are thinning, a young man named Kael Ardent is thrust into the Eternal Nexus, a realm where countless worlds converge. Here, the laws of reality are dictated by Aether, a mystical energy that fuels both creation and destruction. Kael discovers he is a Nexus Warden, a rare being capable of manipulating Aether to bridge worlds and command the forces of the Nexus.But the Nexus is not a place of peace. It is a battleground for Eldari, ancient beings who seek to control the Nexus and use its power to dominate all existence. Kael must navigate this treacherous realm, forge alliances with warriors from other worlds, and unlock the secrets of his own latent powers. As he grows stronger, he uncovers a prophecy that foretells the rise of a Prime Warden, a hero who will either save the Nexus or doom it to eternal chaos.

The dark underground dungeon was filled with countless ancient relics and treasures. Eerie, deformed, cursed objects... The abyss, catacombs, Ancient Gods, mythical races... Mechanics, cursed seal implants, and the gargantuan black towers... A peculiar mix of Alchemy, a drop of steampunk, two spoons of supernatural mystery, blending into a vibrant and colorful fantasy world. I am a puppeteer Alchemist. All that my eyes behold, becomes my puppet. Alone, I am an army!

[Main Plot Completed]A love doomed from the start, a lost cause, a losing battle—and yet, neither hearts are willing to let go until the very end.-----Arlan Cromwell, the epitome of the perfect Crown Prince. All he wants is to live a normal life of a human but the life of a dragon is anything but normal. He has but one goal—to find his runaway betrothed and behead her. What happens when he discovers that the woman who has snagged his heart is the one he vowed to kill?Oriana, a Black Witch, disguising herself as a man, has spent her entire life on the run without knowing what she is running away from. When the mysteries of her past slowly catch up to her, she has no one to turn to…except Arlan. But when she learns that the man she has given her heart to is the same man who wants to kill her, how can she accept the cruel card life dealt her?Two people with secrets to keep, identities to hide, and answers to find. When the certain darkness threatens to take Oriana away, will the Dragon be able to protect his mate?-----Excerpt-“If I knew you were my betrothed, I would have killed you the very first moment we met.” Arlan's gaze darkened with hatred.“If I knew I was betrothed to you, I would have killed myself before you even killed me!” Oriana mirrored the same emotions as him.He pulled out a dagger and offered it to her. “It’s not too late. Just slit your throat with this and you'll bleed out painlessly.”She accepted the knife, her fingers clutching its handle tightly. The next moment, he was pressed against the wall and the knife was on the right side of his neck. “How about I try it on you first, my betrothed?”“Feel free to try. But when you fail, this knife will first taste your grandpa's blood, then yours.”Anger rose in her eyes, and the next moment, blood was flowing through the right side of his neck. She cut deep enough to severe an important blood vessel.“You should not have challenged me,” she sneered and stepped back, waiting for him to collapse.He simply smirked and brushed his finger along the deep wound on his neck. “Seems like you failed.”She watched the wound on his neck heal on its own and felt shocked to her bones. “You.. what are you?”“Guess?”