MTL - My Master Disconnected Yet Again - Chapter 643 Successful foundation

Betrayed. Starved. Left to die alone in a world that chewed up the weak and spat them out.Gu Qingran trusted the wrong people, loved the wrong man, and paid the ultimate price.But fate? Fate gave her a second chance.Reborn 30 days before the apocalypse, she refuses to be the naive fool she once was. This time, there are no attachments, no kindness—only power.With the Omni-Alchemist System, she can create weapons deadlier than an arsenal, fortresses stronger than steel, and medicines that could cure or kill with a single drop.While the world slept, she stockpiled.While they wasted time..she built an empire. When the world burned, she rose from the ashes—untouchable, unstoppable and unchallenged.Let the apocalypse come. Let them beg for mercy.Because in this life, Gu Qingran is no one’s prey.She is the storm.

Night City, it’s a place of endless wonders and horrors. Opportunities and dangers, but before Motoko Kusanagi can access any of them. She first has to build up enough strength to walk again. Learn the basics of living in a world that was just a game to her before. Good thing she found a Shard hidden in her stuff that opens the door of opportunity. But like all opportunities in Night City, it usually ends up in a gunfight. Self-Insert with a modified Cyberpunk 2077 Gamer System. Not a direct Ghost in the Shell Crossover. MC just happens to share the name.

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.

Because her appearance was not breathtaking, the Emperor breaks off their engagement and bestows her instead to the bloodthirsty, ruthless, and cold-blooded Second Prince (Wang Ye).

On her wedding night comes endless humiliation, the genuine Princess Consort becoming a deserted women. A foolish woman before rebirth, she no longer expects his love. In this world, she must possess enough talent to awe those around her, carrying herself with composure and articulating with beautiful diction, override above the nine night.

- Description from Novelupdates