The Man from Hell - Chapter 123: What a Magical Man!

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.

Kota Sakamoto—virgin weeb, social reject, and hentai game addict—gets sucked into a perverted dungeon world straight out of Carnal Labyrinth EX, the 18+ erotic strategy game he secretly 100%-cleared.The catch?All eight of his hot classmates and their strict MILF teacher got dragged in with him.The other catch?They hate his guts.Worse still, this dungeon world is exactly like the game—every level a twisted, orgasm-fueled survival puzzle where failure means death by overstimulation, lust-monsters, or trap-triggered climaxes that literally drain your soul.He’s the only one who knows how to survive.They either listen to the virgin... or moan themselves to death.Bondage plants, lewd slime traps, fetish trials, and orgasm boss fights await—and the only way forward is obedience.What starts as reluctant cooperation turns into obsession, as each girl slowly falls for the boy they once mocked...…the virgin who’s now their dungeon master.

The most successful businessman of his time, who started from being a homeless orphan, died indignantly because of being plotted against by his most trusted aid, his own brother.

Shock! The Eye-Candy of the Entertainment Industry is Reborn as a Top Student!The niece of the Zhang family is said to be the reincarnation of the God of Literature. From childhood to adulthood, she has never scored second place in any exam. Even on the day of a test, when she had a fever of 39.9 degrees, she still effortlessly wrote like a supernatural being—truly amazing.When neighbors talked about this girl, their envy and astonishment were indescribable.This girl was nothing short of a Tsinghua or Peking University candidate; the Zhang family’s ancestors must be smiling from their graves.“Have you heard? That Zhang family girl topped the citywide high school entrance exam again. City No. 1 High School and Experimental High School nearly fought at the Zhang family’s door to recruit her...”“What’s that? The principal of Lanya Noble High School even came with a million yuan to visit her…”The world of a top student is beyond our understanding!——The world of a top student is very lonely!——When one possesses unparalleled beauty but lacks status and power to match it, this becomes the root of all suffering.In her past life, Shen You'an refused to compromise with the hidden rules of the entertainment industry. Her life was one of hardship and destitution, ultimately ending in her dying alone on a snowy winter's night on the streets.Once celebrated as the stunning but talentless beauty of the entertainment world, she left quietly and tragically, without drawing attention from anyone.When Shen You'an opened her eyes again, her firefighter father had just passed away in the line of duty.“Ding.” Your System for Top Students has arrived. Please sign for it.She cut her long hair, put on glasses, and concealed her beauty. Thus, she began her journey to becoming a top student.Until she gains the strength to protect her unrivaled beauty, she would rather let her brilliance be hidden than become a target of envy and harm.