MTL - Gorgeously Enchanting Elementalist: Insidious Evil Emperor’s Airheaded Concubine - Chapter 8 Spirit

Lu Jianyan is absolutely certain that the world he lives in has been crazy.

The romantic friend suddenly announced that he would love him to death; the stranger suddenly decided to die for him … It seemed that the whole world wanted to fall in love with him overnight.

Lu Jianyan: What? [Dazed.jpg]

World: Friend, have you heard of fast reincarnation with the system? There are always a few people who firmly believe that attacking you is the best shortcut to complete the task.

Lu Jianyan: Keep it simple. Please let the way to complete the task simple.

- Description from Novelupdates

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.

Alexander lived—and died—as a wretched, poor virgin, meeting his end as he laid in the hands of his own mother.Stricken by a strange illness, his final vow was a desperate plea: If I’m ever reborn, I’ll attack all the ladies. I'll give my canal desires more attention!Miraculously, fate answers.Reborn into a world eerily similar to his last, Alexander awakens as a Guardian Candidate—a chosen warrior destined to endure trials and serve the gods.But he has no interest in destiny. Armed with divine skills and a frustratingly incompetent and seductive system, he rejects his ordained path, determined to seize this second life for one purpose: conquering women.Now, as a self-aware, unapologetic pervert, Alexander embarks on a relentless quest to charm, seduce, and claim every beautiful woman he encounters.Will his insatiable appetite lead him to the harem of his dreams, or will his reckless pursuit bring another premature end?Join Alexander in this wild, uninhibited adventure—where desire defies duty, and pleasure reigns supreme!

A teenager who unexpectedly gets transported to the modern world from ‘the world of the immortals’ . He finds himself in the body of an ordinary guy. He wants to go back to his world and for that, he will have to practice to get stronger and investigate the reason why and how he crossed through to this world.