Nidome no Yuusha - Chapter 14 - The Way a Certain Beast Girl was Broken Part 2

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.

She was reborn back to 11 years ago, when everything was fine, her family was still alive and she had not experienced the pain of destruction. Since she had the chance to restart, she decided to seek revenge on those who had hurt her! She would also leverage her knowledge and strength to lead her family to a prosperous life. However, she has a regret: despite being reborn, she still ended up marrying him, a man who was difficult to approach...

[You Have Been Chosen.]When the world crumbled, I was nothing more than a jobless loser, left to rot on the streets as the dead devoured the living.Until I heard that voice...[The Ruler System has activated.][Rank 1: Loser][Followers: 0/1]A system that lets me recruit followers, copy their skills, and grow stronger through their actions.My first subject?Mu Qinglan.The ruthless Ice Queen CEO I once called “Boss.” Cold, untouchable... and now infected.As her bloodthirsty jaws closed around my neck, I barely saved her with the system’s makeshift cure.[You Have Recruited Mu Qinglan (S-Tier)][You have copied Mu Qinglan's [Leadership] skill][Please Choose the second skill to copy][+100 Ruler EXP]Every follower I command strengthens me.Every kill feeds my dominion.In this world of death and chaos...I will build an empire of S-Tier Beauties and ascend as the Apocalypse King.For my name is John Wang!

In a realm where power is determined by affinities—elemental forces that shape magic, combat, and survival—Ethan is an anomaly. While most people are born with a single affinity, Ethan stands apart, wielding a vast range of abilities granted by a mysterious Ancestral-line System. This unique system taps into the untapped potential of his vampire and dwarven bloodline, unlocking ancestral powers far beyond the norm.At just 18 years old, Ethan's journey begins when he accidentally awakens this system, discovering that he is the heir to a forgotten lineage that blends the strength, resilience, and mysticism of both vampire and dwarven ancestors, a perfect hybrid of both. Though he must awaken and evolve to harness their power. However, the more power he gains, the more he learns about the dark secrets of his lineage—secrets that others would kill to possess.Unlike everyone else, Ethan's affinities are not innate; they are granted by the system based on his bloodline’s ancient heritage. As he levels up, he acquires abilities that no one in the current era has ever seen: the Psychic powers of telekinesis and telepathy from ancient vampire lords, the earth-shaping skills of dwarf warriors, and a host of hidden abilities that challenge the world’s very understanding of magic.But power comes with a price. Ethan quickly finds himself targeted by powerful factions and hidden enemies who fear what his bloodline could mean for the balance of the world. Ancient forces tied to his ancestry awaken, each with their own agenda—some seeing him as a threat to be eliminated, others as a tool to be used.Accompanied by a diverse group of companions, each with their own affinities and secrets, Ethan embarks on a perilous journey. Together, they traverse beast-filled forests, ancient ruins, worlds and perilous dungeons, all while facing foes who seek to exploit or destroy Ethan’s unique powers. Along the way, bonds are forged, fates are entwined, and the line between friend and foe blurs as Ethan learns that his destiny is far greater than he ever imagined.But with every new ability comes a deeper question: What is the true purpose of the Ancestral-line System? As he battles monstrous creatures, rival affinity users, and ancient curses, Ethan must confront the reality that his bloodline holds the key to either the salvation or the destruction of their world or something else entirely.In a world governed by affinities, Ethan’s unmatched power sets him on a path that could change everything—or lead to his downfall.Will he master the secrets of his ancestry and forge his own fate, or will the weight of his heritage drag him into the depths of a history best left forgotten?