Overpowered Villain Returnee in the Apocalypse - System is for Losers - Chapter 21: Gamer Soul

Xia Xiaoluo never expected that a takeout delivery would change her life forever.

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.

“Drive this woman out!” "Throw this woman into the sea!” When he doesn’t know Debbie Nian’s true identity, Carlos Huo cold-shoulders her. “Mr. Huo, she is your wife,” Carlos’ secretary reminded him. Hearing that, Carlos gives him a cold stare and complained, “why didn’t you tell me earlier?” From then on, Carlos spoils her rotten. Little did everyone expect that they would get a divorce.

On the day of her marriage, Li Xiaolu was forced to watch her beloved younger sister marry her fiancé.

Betrayed by her love, her family, she was killed. However, she is reborn to three years before where it all began. She aims to take her revenge while also fulfilling her dreams at the same time.

Still one day, she falls for her sister's underhanded schemes where she meets the domineering CEO.

Zhe Han: "You dare to run away after sleeping with me?"

Li Xiaolu: "Umm... can you consider it a one night stand?"

Zhe Han: "Take responsibility."

Li Xiaolu: "What???"

Zhe Han: "Marry me.."

Li Xiaolu: "....."

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This is my discord link: https://discord.gg/KSNFUJD

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The cover doesn't belong to me.
All the credit goes to the original owner.