Who Made Me a Princess - Chapter 101

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.

Silas Greenfield, a master assassin, dies in a bloody betrayal — only to wake up in the body of a random extra in a fantasy world straight out of a game he used to play. But Silas isn’t here to follow some prewritten plot. With his deadly skills and sharp mind, he’s determined to rewrite the rules and carve his own path.In a kingdom full of power struggles, royal intrigue, and dangerous secrets, Silas must navigate a world where everyone has their role — and he’s ready to break them all.Can a former assassin outwit fate and rise to power, or will he become just another pawn in a game he refuses to play?

He is the renowned playboy that terrifies the world, and countless people’s supreme king.

A night was turned upside down as she recklessly pushed him down on the bed, her face clear and cold: Remember, you’re bottom, I’m top!

“Offending me, aren’t you afraid I’ll kill you?”

“Not afraid. You wouldn’t. ”

Little by little pressing his bottom line, time by time declaring her sovereignty.

Shen Shenxue’s principle is: Even if the entire world spoiled him, she absolutely had to domesticate him into a loyal dog.

Quan Shi: There’s people who love your beautiful and alluring image, there’s people who love your rich spirit, and only I hate your never conceding stubbornness and your endless passionate, deep love.

TL Note: The title’s a play on words, and the words ‘how have you been?’ is meant to be said with a malicious intent behind it (alternate title translation would be, ‘Hope You’ve Been Unwell’ for the latter portion)

- Description from Novelupdates

Reborn into a failing noble family, Liu Xingchang awakens in a weakened teenage body, surrounded by humiliation and betrayal. Once the revered Sword God of the Northern Polar Heaven Domain, he now faces ridicule from his former lover, Yu Qiuer, who has abandoned him for a rival, and scorn from the very man daring to tread on his legacy.Though his power has diminished to a mere third-grade cultivation, Liu’s indomitable spirit drives him to reclaim his path to supremacy. When he fatally strikes his foe amidst the disbelieving crowd, even the noble Princess Qingyuan is drawn to this fallen “”coward’s”” defiant strength.Can Liu Xingchang resurrect his family’s honor, ascend to the Divine Realm, and turn the tables on those who scorned him?