A World Worth Protecting - Chapter 371: New Member of the Adonis Association!

Seven years ago, she freely and easily abandoned ￥100 and ran away, carrying her unborn son with her. Seven years later, she returned with the lady killer’s genius son, never expecting that her darling son would sell her out to MBS International. Unexpectedly, her immediate superior was the Mr. ￥100 from seven years ago!

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.

A young boy was living peacefully.

Although he was poor and alone, he was happy with what he had.

Until one day, a girl came into his lonely life, making it worth living.

However, this also didn't last long when the girl he considered his only family in the world got afflicted with a mysterious illness!

In the end, he sold his parent's house, the last memory he had of them, hoping to save his Lil Sis.

He was even willing to live in the slums if he could save her and, for the first time in his life, stop this tragedy from happening!

But fate yet played another trick on him when a greedy shop owner sold him fake medicine and tricked all the money he got after selling his parents' house!

After being pushed into the corner, he hated those treacherous people; he hated the unfair life, and he even hated Heaven itself!

In the moment of hatred and helplessness, he holloed to the sky,
"IF I HAVE THE POWER, I'LL STEAL FROM HEAVEN ITSELF, JUST LIKE HOW IT STEALS EVERYONE FROM ME!"

However, this boy didn't know that this absurd wish would be granted one day by something called the system, and it would also force him to walk on the path of a THIEF!

A path that was despised and loathed by Heaven itself!

I returned to Earth as the invincible Knight King. But the Gods came with me.