Follow the path of Dao from infancy - Chapter 1028 - 212: All Heavens as Enemies, Beyond the Thirty-Three Heavens (12,000-word update asking for monthly votes)_5

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.

I became a scientist for an evil organization.…But I’m too competent.

On a drowsy night, I stumbled upon the princess's secret side.But what began as a chance encounter soon spirals into a dangerous and intoxicating game of desire, secrecy, and power. The story follows Eldric, a low-ranking palace guard, whose routine night patrol is forever changed when he discovers Princess Elena indulging in her most private, forbidden pleasures. Far from the image of a distant, pure royal, Elena reveals herself to be bold, mischievous, and insatiably curious about the world outside her gilded cage.Drawn into Elena’s clandestine world, Eldric finds himself caught between fear and fascination. Each secret meeting pushes the boundaries further, as the princess demands new forms of submission and intimacy, both as a means of escape from her royal duties and as a way to explore her own identity. Their relationship evolves from awkward encounters in moonlit gardens to passionate, risky trysts behind locked doors, where Elena’s authority and vulnerability are laid bareFantasy | Harem | SMUT | R18 | Elves | MILF | Romance

Possessing immortal arts, he can give life and he can bring death. Treading upon thousands of heroes, every corner of the city has his legend…