I Was Possessed By An Unknown Manga - Chapter 30: Student council’s gathering!

Jaden lived an ordinary life. This was the life that he had lived for several years now. This kind of life was one that had existed ever since the death of his parents.His parents died in an accident, leaving him an orphan. The moment that his parents died, his uncles came over and took over everything that was supposed to be taken by him.He tried going to court, trying to see if he could get back the wealth that belonged to his family, but due to the connections that his uncles possessed, he did not succeed.Completely abandoned by his relatives and friends that existed before the death of his parents, Jaden was left to fend for himself.He managed to get a job as a bouncer in a club. But as a coincidence, he ended up irritating someone that he was not supposed to offend. And with that, he was beaten and left in an alley to die.But it was at that exact moment that out of nowhere, he was bitten by a dog. Jaden could not believe it. He had never expected that he was going to die just like this. And even before dying from the wounds that he had suffered from the beating, he was going to be infected by rabies?But the strange thing that happened was the fact that after the dog bit him, a holographic screen appeared in front of him.[Congratulations on being chosen by The Bodyguard System.]And with that, Jaden's life changed completely.

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.

“I have repeatedly emphasized that the atmosphere in the world of cultivating immortals is inherently crooked. I didn’t bring it crooked. It is said that the history books are written by the victors, so why do people always frame me when I win?” Lu Yang Jianxian said in an interview with reporters. , expressing great anger.

the next day.

“I have repeatedly emphasized that the atmosphere in the world of cultivating immortals is caused by me.” Lu Yang Jianxian said in an interview with reporters, expressing his anger. ——”Xiu Xian Daily” reports for you.

- Description from novelbuddy

Dumped by his girlfriend for being broke, killed in an accident by a truck, only to get transmigrated into a fantasy world as Lucien Goldveil, noble heir of a rich nobility in the kingdom of Edoria.He should be content since he was now filthy rich, but he couldn't, as this world was a world of magic where money without power was only a curse.What he would face next would only be endless conflict and the hounds looking at his wealth with those hungry gazes.---Ding[Debt Collector System has been successfully bound.][Detected failure to collect debt from target: Alchemist Devan.][Automatically extracting compensation of equivalent value…][Congratulations! You gained: Minor Mana Sensitivity (Passive), +1 Intelligence.]---Fortunately, his system came on time, giving him that glimmer of hope. Now, it all depends on his ability to exchange his vast wealth for power by playing his cards right.With the kingdom teetering on the brink of war and the Godveil family surrounded by hungry wolves, Lucien had no choice but to grow stronger and fast.Not to mention finding those behind the shadows hellbent on killing him, or those trying to kidnap him for his wealth. Wealth without power was a curse, and it was on Lucien to change it into a blessing instead.And those dungeons… Wait a minute—why the heck does this world have so many dungeons?