Cultural Invasion In Different World - Chapter 1003

“I'm a monster? Why is every player I see trying to kill me?”------------Kai, a young man paralyzed by an incurable disease, decides to play the new VRMMORPG called Realms of Monsters in search of freedom and adventure. However, when he logs in for the first time, something unexpected happens.While everyone else chooses their class and race, Kai awakens in the middle of a forest... as a salamander.Luckily for him, he won't stay a salamander for long.[Mythical Evolution System activated.][Devour a monster to evolve.]Trapped in a monstrous form, Kai must navigate a hostile world where every player is a potential enemy. With the Mythical Evolution System, his survival hinges on his ability to evolve and grow stronger. In a game where everyone else is a hunter, can Kai rise from being the hunted to becoming the ultimate predator?

The most vulnerable time in a tennis game is when you are leading; even if there is a match point, the game is still possible.

Football is round, tennis is also round.

- Description from novelbuddy

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.

At first, when he learned that he was forced to go to many different routine worlds and be reborn into all kinds of cannon fodder, he was against it.