The Black Beast’s Useless Concubine - Chapter 958 - : Infuriated to death! Perfect!

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.

After Li Chen died, he finds himself reincarnated in Feng Jianyu body,

He has now found himself in a world filled with powerful cultivators who form Sects or Join Sects to strive cultivation.

This is Feng Jianyu journey in the majestic world of cultivation filled with sects .

The Republic of San Magnolia.

A teen is summoned to another world as the Hero. It turns out the Hero can power up women with his cum.