Princess's Struggle for Survival - Chapter 104: "Miss Amalia, are you still awake?"

Kazuki’s life was painfully average—just another cog in the nine-to-five grind. His only escape? Binge-reading novels and no-lifing video games.Then he woke up inside one of those novels.Armed with unstable morals, unhinged humor, and a penchant for pettiness, Kazuki is determined to survive, thrive, and maybe cause a little chaos along the way.The world has no idea what’s coming.

After dying, you wake up and realize you've been reincarnated as a background character who is judged as human trash.The decision to change your destiny comes instantly.Discovering that your identity isn't as simple as you thought, you feel favored by the heavens when you manage to become a powerful character.Katase: You won't fool me. I'll expose you for the pervert you are.Murayama: ...Thank you for saving us.Issei: Motohama, what happened to you? How are you so powerful?Rias: If you join my peerage, I wouldn't mind being yours.Sona: You beat me in the game. That means you're now my fiancé.Yasaka: Honey, Kuno wants a little brother.Kaori Houjou: Shinji-kun, let's go on an adventure.Kaede Kazama: Shinji-kun, thank you for saving me from that ball.Rie Sawada: Shinji-kun, I'll wait for you. You'll be my future husband, fufufufu...Changing known history and taking it in a direction not even his eyes could perceive, he didn't stop no matter what. Not even the other world was safe from his clutches.Lexia Von Arselia: My hero, and my future husband...Shinji advances without stopping.“I, Shinji Motohama, swear here and now that I will reach the top of both worlds.”

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.

I got drunk during the Annual Alpha Conference and accidentally slept with Anton, the Alpha of the rivaling clan!I managed to sneak out of the hotel so that I wouldn’t embarrass the pack. I told no one other than my younger sister, although I did not mention who he was.The present: Three weeks later, I reached adulthood and was about to take over as the pack’s Alpha. I would be transforming for the first time at eighteen, awakening my inner wolf as everyone watched. I was on my knees, using all my strength to transform… But nothing happened. Had I failed?Not resigned to my fate, I tried again. But that was when my heart hurt as if someone was grabbing it and my belly heated up as the rest of my body screamed in pain… I drop to the floor, unconscious.When I woke up, the first words I heard were from the doctor.“She’s pregnant…”In our world, any werewolf pregnant with children not belonging to their mates were treated as pariahs, oppressed by one and all. I did not dare to look up at my parents, who would obviously be disappointed.“Baby,” said my mother. “Just get an abortion, and we’ll continue the ceremony. You are still the Alpha of our pack.“Ellie,” said my father. “If you don’t get an abortion, you will never be my daughter ever again.As much as I loved my family, I was the only one my child could count on. That was why I decided to leave home.Thankfully, my younger sister managed to get Anton’s number, but the only thing he said over the phone was, “It’s been so long. I can’t remember what really happened.”So, from now on, I would be a single parent to my child! I swore to give him the good life and to help all pariah wolves find a place to settle!Years passed, and Anton was almost thirty. With his father’s insistence, Anton finally found himself a mate… But who could explain why she was so disgusted with him?