The Big Boss & His Dainty Wife - Chapter 638 - : Living Valuably_1

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.

Reborn in a parallel world, this place is imbued with eeriness everywhere... Do not enter the bathroom after midnight. At two in the morning, the sound of knocking resonates on time. A woman, haggard and emaciated, always stands with her back to oneself. Encountered a strange event? Lucky for me, I can Rewind! This is the story of a Reincarnator, carefully navigating a reality invaded by the bizarre, combating the strange with bizarre poses.

[WARNING: 18+ — NO RAPE]“I scratch and bite,” Vivian warned, holding the Lycan Alpha's gaze confidently.Ronan smirked, his hand gripping her chin possessively as he forced her to look up at him.“You'll crawl and beg too,” he promised.************Being the Clan Leader of the last remaining cursed Lycans, Ronan had long abandoned his task of finding his fated mate after years of useless searching. However, his life is disrupted when he encounters a mysterious and barely clinging-to-life alive Omega wolf, Vivian, trespassing on his land. Covered in strange Wickan magic symbols, Vivian is not just any wolf—she is his destined mate.Vivian has lived a life of rejection and suffering. Abandoned by her first mate for being unable to conceive, scorned by her family, and mistreated by her pack, Moonborn, she has endured endless humiliation. Forced by her father to mate with other Alphas in a desperate attempt to prove her worth, Vivian’s fate takes an even darker turn when she is cursed by a local coven and framed for a crime she didn’t commit. On the brink of death, she escapes into forbidden territory—Ronan’s land.A stretch of land her pack never dared to tread upon.Ronan’s mistrust only grows when he learns Vivian is from Moonborn, the pack that slaughtered his clan and remains his sworn enemy. Yet, irrespective of their dark feuding histories, he takes her in, determined to care for her and break the deadly curse inflicted upon her by Wickans and the ancient curse slowly leading him to an inevitable death. As they grow closer, secrets from both their pasts threaten to break them apart.And when Vivian’s niece arrives with a hidden agenda, matters become far more complicated.

Katherine Zara, a single middle aged office worker, went about her day as she always had; wake up, go to work, come home and read or play games. However, today would be different. Before she left for work, her ex broke into her apartment and killed her.

When she woke up, she was given many choices. She could pick her new world, pick her starting point, and pick her system among many other things. And so Katherine decided to become a servant to a villainess.

Follow Katherine as she serves her petty, demanding mistress in a world of swords and magic.

Additional: The Female Lead (Katherine) will be submissive to her mistress, but will be cold towards others. I plan on having some action, but mainly this will be a story about Katherine serving her mistress and leveling up her system.