The Best Assassin, Incarnated into a Different World's Aristocrat - Chapter 65 – The assassin develops

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.

Peace is a lie told by kings sitting on a pile of corpse..........In a dying world ravaged by dungeons, beasts, and alien gods, only one truth remains:Power decides everything.Some Heroes are kind.Some are just.Most... are monsters wearing crowns of light.Ezekiel Zahara was supposed to die forgotten, a bastard stain in a noble bloodline.They tried to kill him.They failed.He awakened a mysterious system that enabled him to fuse lifeforms with machines into something neither man nor gods could comprehend.With circuits running through his Spirit Veins and mechanical beasts by his side, Ezekiel will carve his legend into the bones of the world.

Baek Ain is your typical lazy guy.

He graduated from university at age 22 with a random degree he chose out of boredom and stayed single because fate decided so until that event happened.

“What? Where Am I??”

After a horrible incident, Ain transmigrated to another world. Or precisely to be a villainous and mobs character.

He died countless times because of the world's protagonists, gathering hatred toward them.

“What the fuck! What do you mean I stole your wife? I've been single since coming into this world!!”

“Hero, please save this world.” A goddess is begging me to save her world from the Demon Lord.

“Wait... Begone thot! That Demon King is my younger sister from 69th Transmigration.”

“How dare you!”

A beautiful heroine is hugging me from behind, wishing to accept her feelings.

“Shoo, Heroine! I don't need useless baggage with me. Side characters are better than you!”

And so, Ain's journey began to end this shitty transmigration cycle.

A dramatic, eventful love story between the Crown Prince and the Supreme General of the Heavenly Empire!This is an Omegaverse story (A/B/O) with a lot of knives at the beginning. Stay away unless you are used to reading danmeis like 2ha, MDZS, etc..Following the Heavenly Emperor's death, Crown Prince Xie Jianyu's Fuxi Palace was attacked by a combined force of Longjing Palace and Wuyang Palace. The confrontation between Supreme General Zhang Fengxi resulted in Xie Jianyu's death, after which Zhang Fengxi found out that he did not know Xie Jianyu at all.First, Xie Jianyu was an omega and not an alpha.Second, Zhang Fengxi slept with Xie Jianyu before.Third, Xie Jianyu gave birth to Zhang Fengxi's son.When given the chance to return to the past, will Zhang Fengxi be able to undo his mistakes? Will Xie Jianyu be able to escape his tragic end?Let this author take you on a fascinating journey (⁠｡⁠･⁠ω⁠･⁠｡⁠)⁠ﾉ⁠♡