Fate Online: Shadow - Chapter 45: Chaser

Forget about moving to the other side of the world and starting over.The Apocalypse is here!As the only survivor of the Tutorial Quest in his area, Elijah awakens the Class of “Depraved Hero”, an ominous-sounding Class with a Legendary Rank!Additionally, because of the insane difficulty as well as his Clear Rank, he gains the Skills that, according to the mysterious figure that is the Administrator, he needs most.[You have Developed the Skill “Absolute Authority[A]”.][You have Developed the Skill “Slave Mark[C]”.]

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.

D-list celebrity Zhong Ruanxing had been embroiled in controversies over her sultry figure ever since her debut. Smear campaigns and malicious rumors clung to her like a shadow. Years of oppression from higher-ups and sabotage by rivals made it difficult for her to shake off her reputation as a femme fatale, severely hindering her career.

Song Jingxing, CEO of the prestigious Song Group, graduated top of his class and stirred up storms in the business world with his capabilities. An aloof presence at the pinnacle of power, his interpersonal relationships were a mess, with even family keeping their distance. People loathed his attitude.

A freak accident caused these two very different people to swap bodies.

What they thought would be an arduous ordeal turned out to be an unexpected boon. Each found they could easily resolve issues that had plagued the other.

The celebrity living the CEO’s daily life: Greeted his family affectionately, treated subordinates with care, gave employees benefits, complimented his secretary’s new hairstyle—starting the day with vigor!

The CEO as celebrity: Trampled over rivals, tore apart enemies, sent lawyers after antis. Whoever dared provoke him would die! The CEO was whipping the entertainment industry into shape!

Much later, netizens posted:

[Who is Zhong Ruanxing’s backer? Her resources are too good now. From nobody to A-lister, whose thighs did she hug to get here?]

Online influencers hurried to speculate about the magnate behind Zhong Ruanxing.

Until the famously aloof CEO of the Song Group responded: I’m pouring resources into my own girlfriend. Got a problem with that?

Rude is a tank, known as the strongest in history. However, the Hero decided that his skills were worthless because he couldn’t do anything but take damage, and threw him out of the party. His cleric friend who trusted him followed him to the remote village that Rude was forced to return to.