First Immortal of the Sword - Chapter 1917 - The Esteemed Demon God of the Spirit Martial Epoch

At the heart of a wish lies an attempt at completion, a human desire to become our true and final selves. Wishes are fuelled by regrets and are bound eternally to the past, serving as approximations of what once was. We all experience regret and nostalgia, leading us to make wishes and find despair, but can we become our true selves despite this all?That's where the story of a girl who struggles to control her desires begins...Two souls sharing the same body and memory are living in Kyoto 2031. Tang-Ji Shizukesa, a girl who's grown up in her previous life with a hardcore passion for gaming, is now a bookworm in her new life who has no interest in video games. Along with her, Kazami and Hoyeon, the three childhood friends who separated 7 years ago due to an accident, have now been reunited again in a VRMMORPG game known as Dusk Protocol. The game has a unique combat system known as “Leere,” a physical manifestation of an individual soul that can be conjured into deadly weapons.As Tang-Ji navigates this virtual world, she confronts the echoes of her past and the dissonance between her former self and her present identity. How will she cope with the rediscovery of a life she thought she left behind? How will Kazami and Hoyeon react to the new Tang-Ji? In a world where reality is malleable and death is just a click of a button away, the boundaries between past and present blur, forcing everyone to grapple with the truth of who they truly are.Disclaimer: This novel contains explicit language, violence, racism, and sexual scenes. There are also scenes that deal with various traumas, from physical to emotional to mental.(THE CHARACTERS’ CIRCUMSTANCES , TRAITS, AND BELIEFS IN THIS NOVEL ARE ALL BASED ON A TRUE STORY.)

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.

She, the “godly doctor” of an assassin organization in 21st century, transmigrated into the body of Yun Family’s abandoned, good-for-nothing Ninth Miss. Good-for-nothing? Then she’ll let the world see what a real good-for-nothing looks like. Summoners are legendary? Nothing is impossible in this world! She’ll become the first Magical Summoner.

He, the third prince in Long Xu Kingdom and the mysterious, behind-the-scenes owner of Zhou Dynasty’s monopolized business, seemingly handsome and uninhibited, is actually brutal and merciless.

The world knows her as a sickly good-for-nothing and her standing is as low as a servant’s, yet she solely dominates his heart. Trickery, schemes, overbearing, seducing… an exhaustion of methods, all to capture her heart. The scheming couple supports each other, producing stories about enmity, love and win-win cooperation.

Read to see how they stand side-by-side at the peak of this extraordinary world.

- Description from Novelupdates

What?! The sticking to her daily, eating her tofu (taking advantage of her ) is a cross-dresser?

Not to mention that he is the Evil Highness!! She had slept beside him, and was touched by him, what a big loss!

Ah–!

Softly on his chest, listening to his pounding, strong heartbeat, her face turned red. Her greatest desire was to be in his arms.

She never dared to dream before, dared not wish for, and thought that in this life there was no such chance. This had been in her most secret heart of hearts, she longed for his warmth, longed for his love.

Even though he had hurt her before, he had given her more tenderness than others.

Being teased, loved, laughed at… had infiltrated into her bloodstream. Love, she did not know when it had taken root, for when she discovered it, it had grown into a towering tree, no longer able to be split open or cut off.

His hug, his warmth, she would not allow him to give it to others. If they were not only for her, she would rather not have them.

- Description from Novelupdates