In a Different World with a Smartphone - Chapter 513

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.

“Destiny is a matter of Choice not Chance,

It is not a thing to be waited for but a thing to be Achieved”

.....................

The story sets in a mana blessed world, Planet Vermillion, where every being possesses a System.

At the edge of his life, Zero, a man without a System, finally loses everything and embraces his death with a tired yet relieved expression.

As if by fate, the owner of the system approaches Zero through a screen and gives him a chance to connect with the System, however Zero denies it in exchange for a chance to change or undo all the mistakes he has done in his life.

The owner of the System accepts Zero’s wishes but at a certain price and sends Zero back into the past.

Still without a System, but with the knowledge of the future and various skills honed over the years, Zero begins his new journey to change everything he could.

Save everyone who needs to be saved and kill everyone who needs to be killed.

However, the more he moves forward, the more he realises that the ‘truths’ which he had known in his previous life are much more complicated than what they seem.

Balancing his previous beliefs and the new found mysteries that could shatter his perspective, he still keeps moving forward despite things getting more chaotic with every step.

As if fate itself wanted him to fall, an unknown disaster approaches him from behind and a familiar screen comes in front of him

[Ummm… Zero. It might be a bit late but… Looks like I have messed up big time]

One day, a gallery appeared before my eyes.…And then I was able to see who wrote in the gallery.All the heroines are ‘virg*ns’.

If you ever receive a letter offering you admission to a university in another world, do yourself a favor and toss it straight into the trash—especially if that university trains girls to transform into giant mechs and battle space aliens.No. Just no.Believe me, I know from experience. What once seemed like a dream is now more of a nightmare. My name is Zaft Callahan, and I enrolled in an engineering support course on the cyberpunk planet Xyraxis. At this university, genetically-engineered girls are trained to transform into giant mechs called Warfare Augmented Intelligent Frame Units. My goal is to become a support unit for these WAIFUs in their battles against Cosmic Beasts, using the Weaponry Enhancement Engineering Bios System.Little did I know I’d be partnered with my high school nemesis—Myrrh Alicent, a beautiful WAIFU. Together, we must navigate this university’s endless twists and turns, win tournaments, battle Cosmic Beasts, and even uncover the mysteries of an Outer God. And as if that weren’t enough, we still have to face the ultimate challenge: surprise quizzes in advanced calculus.What to expect:Cyberpunk World Isekai.First Person View of a Male MC with an overpowered Support System with LitRPG elements.Female MC turns into giant mech. What else do you want for a WAIFU?Slice of university life full of brainrot comedy, fluffy romance, and some weird ecchi.Space battles, mecha tournament, and eldritch horror enemies.