I'm only one year old, what the heck is a Overturning System?! - Chapter 3 - What’s the Use of Entering Sword Dao!?

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.

Yun Lintian, a man from modern Earth, found himself in a cliche situation that was all too familiar to him in novels: Being transmigrated! He had arrived in a magical cultivation-oriented world called the Azure World.

Unlike the other protagonists in various novels he had read before, Yun Lintian was left without any cheat device. Pill Emperor inheritance? Super God-like physique? He had nothing!

Did the God of Transmigration really leave him with nothing? How was he going to live in the world that strong preying on the weak?

Watch the journey of Yun Lintian in the foreign world as he grew up in power ranking along with his precious all-female sect!

Arthur Grail, a hardcore player of the VRMMO Trinity Star Online, woke up one day in the body of Gerard Astoria—a petty villain fated to die before the main story even began. To make matters worse, Gerard's death was a crucial event in the game's narrative. If he didn’t meet his predetermined end, it could disrupt the story entirely, leading the universe toward one of the countless “bad end” routes!Unwilling to leave his fate to chance, Arthur decided to take matters into his own hands—recruiting the “player” as his partner to help him clear the game and rewrite his destiny.But wait—“Why is the player not a dude but a sharp-tongued beauty instead?!”Follow Arthur's odyssey, filled with trouble at every turn, as he works to uncover the mystery behind his awakening in a universe eerily similar to Trinity Star Online's setting, all while trying to save the entire universe… without forgetting to enjoy himself!

The Night Has Come, and kermesinus moon ascends in the sky.Hoarse whispers flow at the street corners, and brass steam machines spew out bloody mist.Your brain is singing a hymn, eyes are chanting a melody.Skin cracks, and flesh buds swell.Amidst the Mist, the wall of flesh that has devoured thousands of corpses wails endlessly—“Weep not, our players don't bite, they just want to play with you.”Annan, the lone strategist, the top player, the savior of the mist-covered continent, the leader of the Thirteen Saints, the friend of the Twelve True Gods, the king of pioneers, “the Just”, the Gatekeeper of the Fourth Calamity, the uncrowned deity, advised kindly.