The Inheritance Of The Supreme Immortals - Chapter 159 - : The Emperor’s Wives

Three years into Qin Yu's marriage, his wife and in-laws all hated him.

A girl who calls herself a demon appeared before a timid student named Fumio Kijima. The girl claims to be a campaign girl from the demon world and she gives him the ability to “summon a room” from nothing but thin air.

At first he doesn’t abuse his power and uses it as a convenient ability in his every day life. But one day he is bullied by his classmates under a false pretext and is made to suffer. In the past he would have wallowed in misery and cried himself to sleep, but now he had a power to call upon.

“I will make them regret it!”

Using his powers to summon his “room”, he begins his era of confinement and brainwashing to achieve his goals.

The young man Ye Tian obtains the ability to copy the talents of others and now fights against the heavens to change his fate.He struggles to survive and protect his sister from the apocalypse of the alien beast invasion.In order to become stronger, he begins to explore the unknown world and gradually reveals the secret behind the invasion of the alien dimensions....Ye Tian: My friend, your ferocious beast, the armored rhinoceros, is pretty good. Can you let me touch it? The proud daughter of a certain heaven nodded in confusion. Ye Tian touched an armored rhinoceros and secretly copied the armored rhino's top defensive talent.Ye Tian: Friend, let’s be friends. Ye Tian stretched out his right hand, shook hands with the somewhat confused genius, and secretly copied the other person's advanced cultivation talent, revealing...

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.