Jujutsushi Wa Yuusha Ni Narenai - Chapter 204.2 - The Secret of Sugar

Of all the characters in this story, it had to be the son of a bitch!?Thanks to the courtesy of Truck-kun, I was transmigrated into the famous yet garbage novel, [Hero's Apocalypse].The character I possessed was a third-rate extra who had the [Talent] to 'plunder' other talents. Yet, as overpowered as it might sound, the conditions to fulfill a successful plundering were extreme, making this character truly befitting a third-rate trash.But that's not what's important right now—it's the fact that this man's role in the original story was his very death, and I opened my eyes after the original body just finished killing himself.“Fuck! Why did you attempt to sexually assault the Imperial Princess?!”Feeling livid, I strongly punched the mirror in front of me, knowing that as soon as I gained a new life through mysterious means, others would inevitably come to take it because of this bastard's unforgivable sin.But I wanted to survive...Motherfucker, can I do it?!

In the year 298 from the era of the gods, elementary school girls Sumi Washio, Sonoko Nogi, and Gin Minowa are tasked with an important mission. They are to become heroes and fight Vertex, a mysterious enemy that is attacking Shinju-sama, the god tree that protects Shikoku, the only area in the world that is still habitable. What they don’t know, is that this fight will cost them more than they could have ever imagined.

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.

Awakening to a post-apocalyptic world infested with zombies and mutated monsters, Alex makes a startling discovery: he possesses a system that grants him access to unlimited resources every day.【Congratulations, you've received unlimited bottled water.】【Congratulations, you've received unlimited 9mm bullets.】【Congratulations, you've received unlimited cold medicine.】...With each system notification, Alex's chances of survival soar while others struggle to stay alive.As everyone else fights for their lives, Alex finds himself living in luxury, residing in a lavish mansion where he leisurely sips red wine and savors grilled delicacies amidst the chaos of the end times...