My Stepbrother Wants Me - Chapter 5: The Queen Of Campus Hell

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.

To care for her ailing sweetheart, college student Lu Chenchen gave up her white-collar office job and chose the higher-paying caretaker profession instead. Going around in circles, she ended up at the Mao family’s home.

The Mao family background was complicated. Old Madam Mao was not her son Yanning’s birth mom, but his young aunt. His wife was Old Madam Mao’s first love’s daughter, spoiled and pampered. Despite over ten years of marriage, husband and wife were distant.

To repay Old Madam Mao’s kindness in raising him, and for the sake of his three children, Mao Yanning endured again and again – not just a loveless but outright destructive marriage.

Lu Chenchen walked on eggshells among these people – carefully serving young and old, currying favor with the lady of the house without offending the man of the house, while also worrying about his sweetheart’s illness and missing “his” elders and children back home. Her heart was like a cookie flattened between the pages of life, living a difficult and cautious existence.

However, as the saying goes, “You reap what you sow.” A life that has been polished will eventually shine with a brilliance that ordinary years cannot compare.

She is the slow-witted idiot of the Prime Minister’s Residence. Everyone bullies her. He is the most respected and unfeeling Prince, with frightening ability and absolute envy! Together, they are conferred an imperial edict of marriage.

'Did I reincarnate as the First Born son of a noble???'Jack was reincarnated as Jack Kaiser. Firstborn son of Alaric Kaiser, the strongest duke in Elysium. Born and destined for greatness. Or so they said.In a world ruled by Magic and Martial Arts, where talent determines everything, Jack's future seemed guaranteed.Until an unfortunate hunting trip left him in a 10-year coma.A system awakens within Jack. Granting quests and accelerated progression, Jack realizes he might have a chance to reclaim his destiny.In a world of dungeons, monsters, a political challenges, Jack will rise to his new title and become the Strongest Kaiser in history.