Achieving Nothing, I Can Only Be the Pirate King - Chapter 470 - 275: Kamehameha? Gallic Cannon!

Elliot Hawthorne, had transmigrated into the body of a struggling apprentice mage, and now had one simple goal, summon a small, harmless spirit to pass his magic academy’s final exam. But thanks to a mistranslation in an ancient grimoire, he instead summons Azrael, the almighty Demon King.That would’ve been bad enough…. but then the spell accidentally binds them in an unbreakable marriage contract.Now, Elliot is stuck with a possessive, dangerously powerful, and ridiculously affectionate demon husband who:Carries him everywhere because “His cute little summoner’s feet shouldn’t touch the ground.”Summons hellfire just to keep Elliot warm when he complains about the cold.Declares war on any kingdom that dares to call Elliot “single.”Refuses to be unsummoned.“Why would I leave? My husband is here.”Worse, every holy knight, exorcist, and jealous god now wants Elliot dead for “stealing” the most powerful demon in existence.. Stuck with a one-in-a-million system dungeon and a devilish Demon husband, Elliott's life is constantly on the brink of disaster...But when Elliot starts uncovering secrets about the contract, he realizes…Did I really summon him by accident? Or… was Azrael waiting for me all along?One way or another, Elliott’s unlucky life becomes worse. An impending doom threatens the existence of the human and mortal worlds.And as if that wasn’t enough, he’s also stuck with a Demon for a husband.But maybe, just maybe… being bound to a dangerously powerful Demon King isn’t the worst fate after all.

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.

In his past life, Ming Yu struggled in the European and United States fashion circles, eventually becoming the well deserved king of the catwalk.

Shoved into the backseat of his father's car right after graduation, Riley Hale ended up marching toward a company building with a bagged lunch and a pen.Still in his toga, the fresh graduate never thought he’d land in the office of the continent’s top lizard, err, dragon, as his aide.And that would’ve driven any person wishing for a corporate career to tears. After all, who wouldn’t want to serve the fastest ticket up the corporate ladder: Kael Dravaryn, the infamously elegant, unhinged, and extremely overpowered Dragon Lord of the continent?Well, that would be Riley.The same Riley who didn’t expect to spend his days dodging fireballs, dressing his boss in robes more complicated than dark magic, and serving as a literal target during morning sparring.Now trapped in a job he never truly agreed to, the hardworking aide decided to hold out until it was time for his glorious resignation. But leaving a dragon’s clutches could never be easy, especially one with elemental mastery and a finger worth a private army.Yet, as Riley, who longs to quit, attempts to navigate ancient politics, wyvern threats, and other accidents (many of which are definitely not his fault), he might just hallucinate himself into seeing something beneath his boss’s arrogance and molten glares.Maybe he’d actually care if Riley got turned to ash.