Did she already know what I would ask her for? - Chapter 213: Ch 212: Haa… This situation with my girls won’t go on much longer.

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.

Born into a lower middle class family, Ace Lander grew up being told there was a simple formula for success: get an education, graduate, and work hard to build a prosperous future. But that formula failed him during the final stretch of his senior year when a local gang targeted him, putting everything he had and was building towards at risk.Trapped and desperate, Ace felt his life spiraling out of control—until Ria Hart, a fellow classmate, discovering Ace's innate aptitude to become a Curse Master, a being capable of wielding curse energy and abilities but haunted by Curselings, took pity and introduced him to the secret world hidden beneath the mundane surface of their world, the World of Curses.Awakening as a Curse Master, Ace discovers he possesses an extraordinary innate curse tool: the Cursed Toybox. This tool comes with a unique class, Toymancer, granting Ace powers unlike any curse master the world has seen before. The Cursed Toybox allows him to animate and actualize toys, transforming them into powerful, living beings bound to his will.From overpowered heroes to legendary gods, any toy that falls into Ace's Cursed Toybox springs to life with powers beyond one's imagination but bound to him in eternal servitude. Armed with his Toy Summons, Ace must navigate the perilous world of curses, protect his loved ones, and reclaim control of his destiny before the gang—and the darkness of the hidden world—consume him entirely.[ — Status Screen —> Your Cursed Toybox is animating the doll 'Silicone Sailor Stella' as a toy summons…> Your Cursed Toybox has animated the doll 'Silicone Sailor Stella.'> Toy summon 'Silicone Sailor Stella' added to your toy space.> Toymancer can now summon Sailor Stella.Summoning Toy Summons...Name: StellaRace: Curse ToolClass: Toy summonTitle: Silicone SailorDurability: (100/100)Enchantment: 1-StarIndividuality: (100/100)Curse Energy Consumption: 5 units per hourSkills: Toy Actualization, Seamanship, Armed Security, Adult Gratification.Toy Actualization: Bring Toy Summons' original character design and skills to existence when they are animated based on their individuality stats.Addition Effect: Toy Physiology.Seamanship: Expertise in navigation, sailing, and ship handling alongside wilderness survival, first aid, and emergency procedures.Armed Security: Proficiency in the use of small arms and other naval weaponry with training in close quarters combat, surveillance, and counterintelligence.Adult Gratification: Creatively addressing emotional, mental, and physical needs of Toymancer till gratification.]“Cursed armies, Curselings, and Curse slaves are nothing—I've got a Toy legion of overpowered action figures and unrealistically beautiful silicone goddess.”~ToymancerJoin the saga of the Toymancer's rise to become the Strongest Curse Master.

Zou Liang, an otaku with a passionate interest in a fighting game came into a world governed by the beast tribes.

There the ones with high martial ability were respected.

Extreme beauties were a little silly.

This guy felt depressed. Such a crazy really could force a civilized people like him to turn crazy!

Scoundrel Zou began his unrestrained and destructive journey in the Beast God Continent.

Rules? There are no rules!

Principles? His actions defined the principles!

Occupations? Occupations were as unimportant as fleeting clouds. What he sought was omnipotence!

In a different world, Zou held the same passion.

This is a story of a nobody becoming the great conqueror—step by step—as a human, filled with touching emotions, explosive anger, and hot blood forever!

- Description from Novelupdates

She was reborn as the antagonist of a fantasy novel, a child who bears her family’s resentment.

As it stands, her fate is to end up on the guillotine at the hands of the furious villagers!

Kynemeia, for the sake of a comfortable future, plans to gather some Munchkins to govern the fief. However, there’s one problem…

Kynemeia stared blankly at the boy sitting in the underground prison.

“…Why?”

“I got caught.”

She’s on the receiving end of an unwanted obsession from a suspicious mage?!

This is the story of the struggles of a Grand Duke’s daughter who wishes to transform her life
and the Munchkin mage who feigns innocence!

*Munchkin: a Korean slang for a character with overpowered skills.