Became a salted fish pretend heiress and handed over the system - Chapter 65: Exercise

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.

The ordinary yet not so ordinary detective, Wen Wen, woke up in a mental hospital and discovered that his right hand was connected to a mysterious space called the 'Catastrophe Containment Facility,' from which he could acquire the powers of the monsters imprisoned within!By capturing a vampire, he gained a formidable physique;By capturing a ghost, he could turn invisible and pass through walls;By capturing a fox spirit, he could charm the opposite sex...In short, in order to obtain more powerful abilities, Wen Wen began to diligently capture monsters, thereby stepping into the strange world of superpowers and seeing the hidden truths behind the curtain...

Humanoid beast? Ahem…. Humanoid beast….

Because a female immortal sealed a mischievous and sly fox spirit into his right hand, ordinary senior high school student Liu Yi henceforth began his extraordinary journey as a immortal practitioner.

The fox spirit said:

“The prettiest girls in the class, the daughters of rich families, the evil female cult members, the beautiful women in the world of immortals? All these beauties are no longer a dream!

Come, become an immortal and even a diaosi could counterattack!

Come, become an immortal and kill all of the tall, rich and handsome!

Come, become an immortal and capture all the beauties!”

“Liu Yi, I said to capture all the beauties; not to capture me! Hey! Stop!”

- Description from Novelupdates

I freed the Slaves, but for some reason, they keep chasing after me.