Harry Potter and the Secret Treasures - Chapter 1252: An Interesting New Term

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.

“Had that night been quiet and windless… If she had never appeared in front of me…”

Whenever he recalled the past, Clyde felt endless regret. If he had known that being a Suzerain would be so troublesome, he would have never picked up that troublesome Bloodkin. In fact, he would never have even left that secluded Death Canyon.

“Big Brother Clyde, don’t be so dejected. You are now a well-known Suzerain, a hero of the entire continent, the Human Race’s Savior!”

“Lucifer, enough. I just want to return to my quiet life.” Clyde, an Evil God, had yearned for a quiet life, but by chance— or fate— he had met a young a mysterious Bloodkin Lolita named “Lucifer.” Under her guidance, Clyde embarked on his destiny, rising from the unknown as a nameless wanderer to become a Suzerain of a fief before taking the throne of the entire Ximengsi Continent.

There was just one problem: he who would be the torch of the human race wasn’t even from this dimension.

“Han… Yi Jin? The dual-class loser villain bastard, Han Yi Jin?”Han Yi Jin had reincarnated as an insignificant villain in a male-oriented modern fantasy novel.Han Yi Jin, the small-fry villain who hung around the main character, Kang Yoo Hyun, and died at the beginning of the story.“Aren’t you acting a little strange today?”“What’s strange? F*ck off if you don’t have any business with me.”To avoid suspicion, he acts like Han Yi Jin from the original story. This rather attracts the attention of the gongs, and Yi Jin is looked upon with suspicion.[Synchronisation is complete.] Shake the Catnip (S): All stats of the designated opponent +20%In the meantime, he had acquired the “Catnip Skill” from nowhere.Because of this skill, which becomes more effective the higher the intensity of the skinship, Yi Jin begins to attract the obsession and interest of the other characters…“I love it when you curse.”“Hyung, would you like to go out on a date with me?”“You wouldn’t think of that if I cut off at least one of your legs.”“Keep running away like that. I’m curious how far you can go.”These crazy bastards are obsessed with me.“Why are you all staring at me with those eyes? Get the f*ck out of here, you crazy bastards!”Will Yi Jin be able to escape safely from the clutches of the gongs?Will he be able to escape death?

Upon awakening, the apocalypse's metaphysics master, Nan Li, found herself as the lost Sixth Miss of the Anyang Marquis ManorThinking it would be a story of abuse, she never expected all five of her brothers to dote on her one after another!Nan Li shouted, “Stop pampering me! In fact, I can do everything, from capturing ghosts, exterminating demons, divination, physiognomy, to healing and saving people. I'll lead the family to rise in power and wealth!”Accidentally saving the Ninth Prince, who held great power in the court, Nan Li found him renowned for his cold and unfeeling demeanor. However, he became utterly addicted to pampering her and refused to take other concubines.The scheming and malicious women were angry, shouting, “The prince lacks heirs, how can this be allowed?!”Nan Li pointed at the line of little ghost-catching disciples and said, “I'll cure your poor eyesight!”The Ninth Prince lifted her in his arms and said, “We have a bit of thin property that needs to be inherited, so we'll have a few more children.”Later on—Nan Li looked at the continuous immortal mountains and the room full of treasures, her mouth twitching, “I thought you had a throne to inherit, what's going on now?!”