Rebirth Swapped Bride; Married to the Ruthless Cursed Billionaire - Chapter 5: Betrothal Gifts

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.

Above the Great Wilderness, there are many sects, and a hundred schools are in full bloom. Not only the three clans of humans, demons and monsters, but also the four unifications of Buddhism, Demons, Taoism and Confucianism.

Ordinary kid Liang Yan, because of a great change in a heavenly bead, embarked on a turbulent fairy path. Since then, he has experienced ups and downs for several times.

Qingshan flute Ren Pingsheng, a fairy in wine with a gourd and sword!

- Description from novelbuddy

After what seems to be a plane accident,

Su Bai Master Su was seized of his power and unexpectedly reincarnated onto a cowardly distant nephew.

Who said that you will lead a dull life after rebirth?

The ‘Jade-Faced Yama’ who once ate both the black and white path

vows to take back the power that once belonged to him step by step.

Do you really think Master Su is a rice dumpling for everyone to push around when he does not display his wrath?

- Description from Novelupdates

Maria is the only daughter of Jackson, the Alpha of the prestigious Blue Moon Pack in Aberdeen, Scotland. Her mother, the Luna, was revered for her grace and strength. But despite her lineage, Maria's life has been far from perfect.At seventeen, she couldn't shift into her wolf or sense her fated mate, a secret her parents kept hidden out of shame in the pack.By nineteen, still unable to shift, she was forced into an engagement with Bernard, her childhood friend and the future Alpha of their pack, who already had a mate only Maria knows about.Maria and Bernard attended the same college, where their engagement was the talk of the campus, earning Maria both admiration and envy.Yet, behind the smiles, Maria's heart belonged to James Brooklyn, the next Alpha of the Crescent Moon Pack—the sworn rivals of her people.Everything took a darker turn on the night of her engagement to Bernard when her parents were brutally murdered.Will Maria survive the deadly power struggles within her pack, uncover the identity of her true mate, and claim the life she deserves?Or will the curse of the Blue Moon destroy her and everyone she loves after finding out who killed her parents?