My five ghostly husbands - Chapter 64 Fixing computer

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.

In a world governed by cultivation and power, Li Tian was once a formidable warrior, feared and respected. However, betrayal led to his untimely death. Reborn in a new realm, he awakens as a 17-year-old bastard child of a powerful family, ridiculed and ignored by those around him. Retaining the memories of his past life, Li Tian is determined to seize this second chance.As he navigates the treacherous waters of his new existence, Li Tian finds himself entangled with numerous captivating women, including his alluring stepmother, Xu Fang, and his charming fiancée, Zheng Wei. With a system that reveals his hidden desires and offers him tasks to complete, he must confront his inner struggles while forging bonds and gaining strength.Will Li Tian rise above the stigma of his birth and carve out a destiny worthy of his past glory, or will the shadows of betrayal continue to haunt him? Join him on a journey of self-discovery, love, and conquest as he seeks to transform from a mere bastard into a legendary figure of the cultivation world.

Rainer, an amateur arcanist and college student, sought to create a new spell far surpassing the magic of the few he inherited from his grandfather. Yet the interference of an unknown event during the casting of his spell led him to be thrown through space and time.

Fate and destiny; no one can foreshadow the terrifying challenges on the road to the Pure Land. Instead, one may unearth the evil within the road of light towards paradise.

A King’s Holy Sword, bringing light to the darkness,

An unyielding soul, igniting the fiery hope of the world,

As his soul awakens, the youth fiercely battles the gods of darkness and evil,

As the surging dark clouds gushed out like a phantom, their conflict swept the world like raging tide!

The clash of darkness and light, a massive war on the verge of exploding,

The decisive battle of gods and deities rewrite the creation of the world into one destructive epic!

- Description from Novelupdates