Regressor Takes Everything - Chapter 58

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.

Spot was summoned from his comfortable charging pad and familiar floors to a world of magic and intrigue. After the flight of his new patrons, he is left to care for a filthy castle. During his quest to keep this new home clean, he will face demons, foreign armies, and the dreaded stairs.All those who stand before him will be swept away. Those who follow his spotless trail will find enlightenment, purity, and a world on its knees.Follow this wholesome vacuum on his quest to power.

“I will have the 1,000 people I have chosen go to a parallel world.”

Chaos spread once those words of God were displayed to the whole world.

Kurose Hikaru, whose childhood friend had been chosen, was killed together with her on the same day she was supposed to be transferred. However, for some reason, Hikaru didn’t die and, even though he wasn’t chosen at first, he ended up as one of the [Otherworlders that will have all their actions live broadcasted to Earth].

Transferred without any preparations at all to that accursed land, he faced threats innumerable times and somehow managed to survive with his Gift, the Dark Spirit Abilities.

“I must not die. I am sure the people on Earth are all rooting for me after all…”

This is the story of a young boy who is tossed about by the gazes of the viewers, yet eventually manages to raise his head and walk forward.

A Young woman dies on her trip to Japan in the most anticlimactic way possible, buried by a pile of manga, light novels, and even lewd doujin after an earthquake. In her last moments, all the wishes she has suddenly become reality and materialize in all sorts of Special Abilities before she finds herself reincarnated into a corpse!

Wait... Why is the corpse not moving? No matter how much she tries, it doesn't move, she's not even a zombie or something!

Wait... Why is she stuck with the unmoving corpse? The corpse is actually not part of her anymore!

Wait... Why is she not a physical being? Her hands are translucent, and so is her entire “new” body!

“Ah... I am a ghost?!”

Accompany Maria as she survives as a ghost in a brand new and unwelcoming world, raises her own skeleton as her friend, and seeks the truth behind her second life’s death and how exactly she turned into a ghost.

Not only will she have Phantasmal Powers and Dark Magic, but even the ability to raise her own Undead Army! Will anything be able to stand before her path for revenge?