The Reader and Protagonist Definitely Have to Be in True Love - Chapter 1.1 - Reader: I am a black powder fan

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.

The horror game has descended upon the world!Those chosen must risk their lives to control spirits and become spirit tamers to have a chance at survival!However, Lin Yu has awakened the “Divine System,” granting him access to the underworld currency that can be used in the ghost realm!His amount of underworld currency is in the hundreds of millions or even trillions… almost infinite!Therefore, while other players cautiously approach the spirits, trying to please them,Lin Yu’s situation is completely different,Relying solely on the underworld currency in his hands!A seductive ghost secretary is helping him manage affairs in the ghost realm,A cute and beautiful ghost director is pestering him for a business deal,And a fierce and powerful ghost chef is constantly cooking for him in various ways…As he looks at one powerful spirit after another submitting to him,And glances at the other players struggling to survive in the dungeons!Lin Yu sighs!“This horror game…”

A new law has been passed as part of the nation's measures to address the low birthrate.Rude women become livestock.Rebellious women become livestock.Women who commit crimes become livestock.In a world where common sense has been distorted, this is the story of women whose human rights have been erased.

A smug smile appeared on her step sister's lips when she finally revealed she was actually pregnant with her mate's child.Her father's futile attempt to apologize, for ignoring her all this time, because he had his own reasons and asked her to understand.A plea of forgiveness from her mate as he begged her not to reject him, claiming it was just a stupid mistake that he shouldn't have made.And to top it off, a cursed alpha from the north, to whom her step sister was actually promised, is here to collect his debt, so she has to take her place as the sacrifice now.Darn!