Level-Up Apocalypse: Surviving With The Assimilation System - Chapter 73: The First Order

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.

“Sex, Hot Sex, and More Hot, Unstoppable Sex! They want to ride me, squirt and make me punish them. That’s all these high-powered women in Tokyo crave. And who am I to say no when they offer it all to me with a cash reward attached to it?”Yuki Mori is a broke, 21-year-old college student on the brink of finishing his tech degree. Struggling to make ends meet, he stumbles across a high-paying job offer with flexible hours—“Private Servicing Assistant Needed.” Expecting nothing more than cleaning for a high-end fashion store, Yuki is thrilled when he lands the gig.But he couldn’t be more wrong.When Yuki meets Katashi Kurica, the stunning, 32-year-old CEO of Kurica Fashion House, he quickly learns that this isn’t just a job. Katashi is a powerful, seductive woman who doesn’t take no for an answer—and what she wants is him.Nervously, Yuki signs the contract, but it’s only when she calls him to her penthouse that the truth is revealed. “You’ll be servicing me. Not the floors.”For Yuki, a virgin with no experience in the ways of the world, the offer is shocking. But the pay is too good to refuse, and soon he finds himself caught in a web of desire, where his body becomes the price for her pleasure.As their encounters grow hotter, more intense, and undeniably addictive, Yuki discovers that this job is more than just an arrangement—it’s a journey into a world of seduction and erotic temptation. And Katashi isn’t the only one who has her eye on him. In a city where desire knows no bounds, Yuki’s life is about to change forever as he finds himself in the arms of many hottest, and most seductive MILFs of Tokyo.

The mortal body, metamorphosis, longevity, immortality, and eternal life. These five realms, step by step, reveal themselves in front of you. As a normal person, how can one try step by step to reach and open the door to eternal life?

Between the heaven and the earth lies the mortal body, the mysteries of metamorphosis, freedom of longevity, the power of immortality, and the hope of eternal life. A story filled with endless new magic, a new world of immortal styles, people, demons, gods, fairies, magic, kings and emperors. A world of love and hatred, revenge, and mystical battle, all in “Eternal Life.”

- Description from Novelupdates

Arthur Blackwynd didn’t expect to survive the strange and terrifying event that happened at sea. Even less did he expect to wake up in the DC Universe a world he’d only ever read about in comics.Armed with the Shadow Monarch System,the ability that grants him control over shadows and an undead army, Arthur is both awed by his new reality. As a lifelong comic geek, he knows the heroes and villains like the back of his hand Haunted by questions of why he’s here, Arthur struggles to find his purpose. Will he embrace the darker side of his newfound powers and become a villain, or will his sense of justice lead him down a different, unpredictable path?“why the likes of Raven seems to be watching my every move?” In a world full of gods, monsters, and legends, Arthur must decide who he will become and what role he’ll play in shaping the fate of the DC Universe.