FLASH MARRIAGE; CHARMED BY THE RUTHLESS BILLIONAIRE CEO - Chapter 204: I Love You

What do you do when your brother dies because of some entitled assholes? You go undercover.My real name? Clare. But at school, I’m Clause—just another guy blending in. Disguised. Watching. Yes, a boy. No, it's not an all-boys school—I'm just deep undercover, hunting down the bastard responsible for my brother’s suicide. Nobody—and I mean nobody—messes with my precious brother and gets away with it. They better pray I never find them, because when I do? Death will be a mercy, and trust me—I don’t do mercy.And as for the egotistical Alpha and the narcissistic Vampire Prince? They can go fuck themselves. I don’t do mates, I don’t do claiming, and I sure as hell don’t do them.

DEATH COULDN’T KILL HIM—IT JUST GAVE HIM A NEW LIFE TO DESTROY.Reo Carter was a name that made even the hardest killers shudder. A perfect hitman—no hesitation, no mercy. Until his own crew turned on him, leaving him bleeding out in a pile of bodies that used to be his enemies.But fate wasn’t done with him.He wakes up in a world of nobility, magic, and honor duels—trapped in the body of Leonhardt Caulem, the weakest, most useless son of Duke Caulem. A spoiled brat with no skill, no spine, and a reputation so pathetic that even servants look down on him.They think he’s weak? They have no idea who they just brought back.- Swords and magic? He spent his last life dodging bullets—this is child’s play.- Dueling etiquette? A knife in the ribs is the only honor that matters.- A noble’s life of luxury? He’s had enough backstabbing for one lifetime, thanks.He was once a ghost in the underworld—a man who didn’t exist. Now, in a world where strength is everything, he’s about to remind them what true fear looks like.The hitman is back. And this time, he’s aiming for something more.#NobleByDayKillerByNature #TheyBroughtBackTheWrongMan #FromHitmanToDuke #SayYourLastWords

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.

Just like how everyone adored heroes in their childhood, a certain young man adored those powers hidden in shadows. After hiding his strength and living the mediocre life of a mob character by day while undergoing frenzied training by night, he finally reincarnates into a different world and gains ultimate power. The young man who is only playing at being a power in the shadows, his misunderstanding subordinates, and a giant organization in the shadows that gets trampled…. This is the story of a young boy who had adored powers in shadows possibly eventually reigning over the world of shadows in another world.