MTL - The Transmigration Routine of Always Being Captured by ML - Chapter 99 Immortal Demon 12

Transmigrate to the world of One Piece, reincarnate as Saint Imu; Control the world government and sit on the throne of the void.He obtains the star map of the omniverse and contemplates the sea of dimensions.Gather all individual combat power, military power, financial resources and all material resources to open the star gate, conquer all dimensions, and break the limit of individual power!Unite or be destroyed, how to choose?

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 had thought that my life couldn’t get worse when I walked in on my fiancé cheating on me with my best friend. But after a series of unfortunate events, I opened my eyes in a world that I had only read about in a webnovel, the Erudian Empire, ruled under the domineering, bloody reign of Emperor Helio.

The worst part?

I’m not even the main character! Reborn as Winter Royberg de la Erudian, I am the pitiful side character who is discovered to be a royal bastard princess due to a certain physical trait only the imperial bloodline possesses. But I know the end of Winter’s story and the unwanted royal punching bag is framed as a witch and killed at age 16 on the guillotine due to the scheming of the cruel empress.

An aloof, murder happy father? Check.

Psycho half-sister? Check.

Meddlesome author who wants me to follow the script? Double check!

I don’t want to die an early death again, so I’m determined not to ever be discovered as a royal again. But before I know it, I’m trapped in a palace of blood and opulence playing tricky games of power, games I have no clue how to win. How will I survive to adulthood in the imperial palace and get my happily ever after? And am I really the only person who fell into this world?

[Additional tag: GL, Yuri, Only Wholesome romance, Harem, Slow romance, Academy, Fluff, Lighthearted, Overpowered Protagonist and Love Interest][Update Daily]Seven Witches. Seven Sins. Mel always found the apocalyptic Gacha World of the 'Witchhunter's Howl' quirky and confusing. The Tragic Witches. The over-powered Saintess. The Bad Ending. And the twelve thousand Dollar she spent on pulling PNG waifus. Really, another salary emptied? Aw, she still hasn’t bought the new, limited merch yet!But now, transmigrated back to the world 15 years before the apocalypse, Mel had a new mission: as the Witch of Lust, she had to seduce the six other witches, plus the Saintess, to prevent the end of everything.Now if only the Kingdom would stop mistaking her for a terrorist, her childhood friend-turned-lover Envy would chill on the yandere vibes, and the Saintess wouldn’t tease her every chance she got...“Ah... I want Miss Pride to be my chair at my tea party...” Mel sighed, just another normal thought on another not-so-normal day.