Counterattack of the Cannon Fodder Chambermaid - Chapter 655

Caution: This novel contains R18 content. Doomsday had arrived overnight. Zombies roamed every corner and humanity had suffered a massive setback.

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.

World ended on 12:31:2024DING!WELCOME TO REBIRTH: 100 DAYS BEFORE DOOMSDAY!Grace Blackwood survived five long years in the apocalypse before she was killed by her own people. Miraculously, she returned to the past with the help of her family's heirloom - exactly 100 days before the Doomsday.Having a space that was upgraded with a system, she took her revenge, stockpiled supplies for the future, and made necessary deals and connections.In her last life, she was alone. But this time, she found four men who were loyal to her and were ready to die just to keep her safe.In her previous life, she lost her most trusted people, but this time, she was ready to do anything to save them.This time, she was ready to face the apocalypse - stronger and better than the past.* * *Warning: This is a Reverse Harem Romance with mature content.

Yun Bixue is in dire straits—