My Hair Can Create a Demon Country - Chapter 439 - 425: Schemes!

Su Li has never expected that those she met in her first life would follow her to a new life in a new family.

Everything in this life is new and seems easy, but she knows that’s not what she wants.

She wants a revenge. Those who have done terrible things to her, those who have separated her from her husband, and those who have let her brother fail the royal examination in last life, she will let them pay in her way.

But how can a 14-year-old girl, innocent and elegant, take a revenge? How can she fight against her family on her own? How can she deal with her weak-kneed father and heartless mother? Just read and find it out now!

- Description from Novelupdates

My name is Joelson, and I traversed across the world. I arrived at a continent of sword and magic and became a noble sorcerer.

Travel across different worlds and become a fallen aristocratic lord. With the help of the proficiency panel, you can start your liver experience with the ancestral knight breathing method, follow the wizard’s footsteps step by step, and embark on a bizarre and mysterious journey.

- 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.