Oh My God! Earthlings are Insane! - Chapter 104: Competition Among the Strongest

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 the bustling city of Eldoria, nestled between ancient forests and towering mountains, lies the renowned Celestial Arcane Academy—a hub of magical learning and the central setting of the revered fantasy novel, “Aetheric Chronicles.”Unbeknownst to the residents of Eldoria, a young Earthling named Alex awakens in the academy, a place he recognizes all too well from the pages of his favorite novel.Gifted with an OP ability yet unable to use it properly, Alex quickly realizes that he is not merely a student but a living embodiment of a character from “Aetheric Chronicles”, an extra or a side character to be more precise.As he navigates the grand halls of the academy, he's met with a surprising twist—characters deviating from the expected plotline, unforeseen events altering the carefully crafted narrative.Eager to maintain the balance between the known world of “Aetheric Chronicles” and the unpredictable reality he finds himself in.However, the unpredictable nature of his presence in the novel's universe sparks whispers of prophecy and conspiracy among the world's inhabitants.Guided by his knowledge of the novel's lore, Alex faces dilemmas that challenge the very essence of his character. Will he follow the prescribed destiny laid out in the novel, or will he forge a new path and risk unraveling the delicate threads of the fantasy world?Will he find answers to the questions he seeks for?Will he reach the ending of the story? If there is one...

“Alas, this life is a failure; let’s see what the next life holds.” ... “The second life has ended, calculating results... Final rating: C+. Rewards based on rating: You may choose to inherit one item from Constitution, Skill, or Talent. Please select?” “Hmm, I choose to inherit the Talent ’Dynamic Vision’.” “Talent inherited... Congratulations on achieving the following lifetime achievements: Innate Grandmaster; Blessing of Many Offspring (10/10)” Achievement rewards: Two random rewards. You may draw from Constitution, Skill, or Talent, or choose to upgrade Talent level. Please select? ... A reborn individual, in possession of the treasure ’Hundred Lifetimes book’, reincarnates within the Cultivation World, undergoing endless cycles of rebirth without the bloodline ending or the soul perishing! The family he established ten thousand years ago has now grown into a massive entity that spans the heavens. The disciple taken in casually eight thousand years ago ultimately became the founder of a Great Sect in the Immortal Realm. The pet raised three thousand years ago has evolved into an unparalleled Demon Saint of the Otherworld. ... I am Zhao Sheng, and I shall cultivate life after life until Ascension!

Master said, the woman I held in my hands, I must protect for the rest of my life.