Sweet Revenge With My Billionaire Vampire - Chapter 15: Betrothed

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.

TRPG, or Tabletop Role-Playing Game, is characterized by immersive role-playing where players embody their characters. Within the rules, players can steer the story in various open-ended directions, leading to different outcomes.“Cthulhu Campaign” is a major category within TRPGs. In it, players, as ordinary individuals known as investigators, delve into mysterious events, face unknown mythological creatures, and confront unfathomable fears. A key piece of advice in this realm is that the less you know, the longer you survive.Liu Xing, driven by curiosity, wanted to join an online Cthulhu campaign but accidentally became part of a real Cthulhu role-playing game…

A 24-year-old woman traveled to the novel world due to a plane crash. She takes over the body of a cannon fodder who bears the same name as her. She traveled to a time when everything was scarce. The moment she opened her eyes, she was told that in two months, she would marry a lame man.Flustered girl : “Why didn't anyone tell me that my fiancé is so good-looking?”Proud fiancé : “Baby, I'm glad you like my face and body. Shall I warm your bed now?”Confused girl : “Didn't they say you are a cripple? How can you move so vigorously?”Vigorous husband : “Where did you hear such rumors? It seems that I need to prove myself to you.”Shy girl : “So shameless...”

[Ding!! Ultimate Cash System Awakened ][Ding!! Mission: Study for One Hour. Minimum Reward: 1000$][Ding!! Mission: Greet the campus beauty. Minimum Reward: 600$]Lukas, dying a tragic death regressed back in time; the first thing he did was study hard and get into an Ivy League university. Last time he died like a homeless dog who couldn't even afford food on the street, so he vowed to change that this time around.Lukas still remembers who was behind his demise but decided to make himself wealthy first because he knows revenge is a dish poor people can't afford. With his “Ultimate Cash System,” he's going to become ultra-rich and crush those bugs along the way.Additional Tags:#nontr#noyuri#famousprotagonist#handsomeprotagonist#lightcomedy#regression