NTR: I became a noble? - Chapter 20: Serena swallows (18+)

In the highly anticipated release of the first-ever VRMMO, Yeager found himself mysteriously traveled back in time. He is poised to rise to the summit and achieve the impossible. Armed with years of gaming experience and a wealth of strategic knowledge from the future, Yeager believes he can bring about the miracle of immortality. But just as the game begins, fate takes an unexpected twist as Yeager finds himself transformed into a young woman. In a tale that challenges identity and defies the limits of virtual reality, join Yeager on a mesmerizing journey of self-discovery as he navigate a world of mysteries, battles, and alliances, all while grappling with his newfound femininity.

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.

A rookie clerk asked his senior curiously: I heard our President is already married?

[Ding........ ][System Binding.......][10%..........][20%..........][40%..........][60%..........][80%..........][100%........][ Congratulations, Host! The Strongest Family System has been bound! ]----------------------------“Huh? I’ve transmigrated…” Arthur muttered, his voice barely above a whisper as he surveyed his bewildering new surroundings. Confusion washed over him like a tidal wave.-----------------------------Arthur was just an ordinary corporate worker, an overworked cog in the relentless machine of corporate life.After seven grueling days of nonstop overtime, his body finally gave out, collapsing right before his computer screen at home.He thought that was it; he thought he was dead. But little did he know, fate had something extraordinary in store for him.Instead of fading into oblivion, Arthur found himself thrust into a vast and unfamiliar world, one ten times larger than Earth itself!To his astonishment, he had become the head of the Osborn family, a once-mighty lineage now teetering on the brink of destruction.Bound by the standard configuration for all transmigrators: The System which is the [Strongest Family System ], Arthur faced an epic challenge: to transform the faltering Osborn family into the most powerful dynasty in existence.Join Arthur on this thrilling adventure as he navigates treacherous waters filled with intrigue, power, influence and danger.Can he lead a declining family back to glory and secure their place at the top?