MTL - Addicted To Favoritism, the Reborn Sweet Wife is So Sweet - Chapter 229 reluctant

Destiny splits before me into two unrelated, straight lines:one leading to a palace and city ablaze, the Kingdom overthrown, the Earth bearing suffering, and Life enduring torment in this Fire.And the other leading to the pinnacle of Ancient Kings, where deities in the clouds personally crown me. I don the laurel wreath, basking in the cheers of the mountain. My gaze pierces through the mists of history, my Knights conquer lands for me, my Sword cleaves through obstacles, leading my people to victory.I take up this Scepter, holding the Authority of the World in my hands. I overlook the multitude, altering the course of history.I am Brand, King of Vorn, and this is my Legendary tale..........................Plain version synopsis: This is a story about a Senior Warrior with memories of rebirth, crossing back into the World he once fought for to alter the strands of history and make a mark in the sands of time.

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 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.