In the Second Generation of the Trench, He Changed To the Ruanfan Script - Chapter 9:

When the Terminally Ill Noble Allenbert woke up from his fever, he realized that he was the reincarnation of Karzan, the mad dog who roamed the underworld.…But something about this place doesn’t feel right.“Allenbert, nobles need secrets and darkness.”The sinister and chilling schemes of his brother, like a snake, are suffocating him from all sides.“You’ve been causing quite a stir lately.”The powerful and authoritative eyes and ears of the head of the family are hidden everywhere, watching him.“…When will I see Mother?”Meeting his mother, who has secluded herself due to a mental illness, seems impossible.“But it’s okay.”Karzan failed, but Allenbert’s journey is just beginning.“Two lives, two revenges.”There’s no mercy.I’ll pay back with interest, and make sure it’s done properly.

After waking up in a world of magic, knighthood, and alchemy, Carlotta finds herself with an unexpected gift: an intelligence system that feeds her daily updates, secrets, rumors, and even hidden dangers unfolding around her.Yesterday’s intel was especially eventful.Mrs. Thea Ashfield, an eccentric alchemist, tossed away an old tool called the Rose Thorn late last night, left forgotten in a trash bin just south of the academy.Meanwhile, a new restaurant at No. 56 Fame Street is quickly becoming the talk of the town, fresh ingredients, great prices, and a steak that people are already calling legendary.Not all food fared as well though: most of the caramel bread in the academy cafeteria turned out to be leftovers from days ago. (Still edible, just… don’t expect miracles.)Teacher Estelle Marlowe pulled an all-nighter preparing the upcoming magic exam. Rumor has it the questions are no joke this time.Then came the serious alerts. One warned of a wanted criminal hiding in the Fame District, with a bounty of thirty thousand Orrae on their head.The other was more personal, Headmistress Viviana Richards’s lost dog was about to be shipped off by dog traders through the port.Thanks to Carlotta’s timely tip-off, the headmistress was able to rescue her beloved pet just in time.######Some Tags: Female Protagonist, Card Magic, System, Daily Intelligence, Genius Main Character, Focused Main Character, Academy, Intelligent Main Character####There's no plans for romance for now. In my outline I don't plan to add romance for main character but will see how it will develop

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.