Exploring Immortality Cultivation - Chapter 479 - 233 Betting on Grandpa’s Name

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.

Bags of salt, spices and sugar stacked from inside the shop all the way out into the streets. Merchants loaded with goods going flooded the streets with their carriages.

In a world besieged by monsters, humanity's survival hangs in the balance. But hope emerges when every individual comes of age, bestowed with the chance to forge a bond with a hero. These bonds grant them formidable powers to combat the relentless threats lurking in the shadows.Enter Chen Ye, a newcomer to this tumultuous realm. Amidst a sea of aspirants, he discovers an unexpected trend: everyone gravitates towards heroes from the legendary series “One Punch Man.” While most covet the esteemed S-tier champions, Chen Ye discerns a truth hidden to others. He recognizes the unparalleled strength of the One Punch Man, a humble C-tier hero.Undeterred by societal norms and peer pressure, Chen Ye boldly selects the Saitama Physique as his ally during the pivotal graduation ceremony. However, his decision incites scorn and derision, broadcasted live for the world to witness.Mocked as a fool for his unconventional choice, Chen Ye retreats into a realm of silence, channeling his energy into rigorous training. Three arduous years pass, marked by relentless dedication and unwavering resolve.Then, as if scripted by fate, a transformation unfolds. The once-dismissed Chen Ye emerges not as a punchline but as an enigma—an indomitable force. Clad in the invincible guise of the Saitama Physique, he defies the very fabric of reality, rewriting the rules of engagement and carving his legend in the annals of history.

When I was reborn in South Korea, I wanted to live my life in peace. Pass the activation system, unlock the 'Big Brother' career, obtain the invincible system, and embark on the road to power