System vs Rebirth - Chapter 1424: Third Princess’s Return

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.

Rong Qingyan is a 21st century successor of a medicinal family, proficent in medical knowledge. But in the end, she has died in the hands of her relatives. Murong Qingyan is Sheng Hong Continent’s Murong family’s legitimate miss. But even though she is a legitimate daughter, she is the Murong family’s shame because her appearance is ugly and her meridians are blocked, making her a trash that cannot cultivate.

After she transmigrated, she became her.

When she reopened her eyes, the originally unable to cultivate trash let everyone stumble in shock. Flipping over clouds, going against the heavens and changing fate, letting those that originally looked down on her regret it deeply.

Contracting magical beasts, concocting immortal pills. Meeting gods, killing gods; meeting Buddhas, killing Buddhas; swearing to let all those that looked down on her see her in a new light.

When the trash turned into a universally shocking prodigy, when the ugly appearance was shed off, she was no longer the original her. In the whole course of events, whose heart did she actually steal?

Her ex fiancé regretted it deeply, but to no avail. The family that looked down on her is now immensly remorseful, yet they can’t change anything anymore.

When she stood at the peak of the world, he was always by her side protecting and guarding her, letting her be able to freely soar in the sky.

He said: “In my life, I wish for nothing else. I only wish to love you forever.”

She said: ”If it is what you desire.”

- Description from Novelupdates

Nie AnAn woke up one day and realized that she had transmigrated as the villain’s adoptive sister.

In the novel, the villain conquered left and right, and his always woe-is-me younger sister was always cleaning up after him. The two of them were rightfully the grim reapers in the book.

The very next day after her transmigration, the soft and delicious Nie AnAn passed out from seeing blood.

And so —

The shivering competitors noticed that their nemesis’s sister had turned to a delicious treat — and wanted to protect her;

The original male lead noticed that young Miss Nie, who had been chasing after him this entire time, wouldn’t even give him the time of day anymore — and felt unbalanced;

Young Master Nie was very happy that his parents had two kids back then– she was so GD cute;

A certain cold blooded and violent villain had been going home earlier and earlier, and the way he talked was becoming gentler and gentler.

Villain Brother: AnAn, come over. Let me try some of it.
Nie AnAn: Hold on, gege. It’s not ready yet.

- Description from Novelupdates

A useless prince, yet brimming with kindness and compassion—his smile as warm as sunlight, illuminating this darkened era.But that was merely a mask, hiding the poisonous and mad nature beneath.A monster lurking behind a gentle shell.A system that feeds on stolen Heroines.He will outplay destiny—and rise as the world’s ultimate villain.