Dungeon of Pride, Laplace - Chapter 61: Might of the Advanced Magic

She was disfigured and her mother died an innocent death. A cup of poison wine was not enough to kill her and she had to die by plunging into burning flames! Before entering her next lifetime, she vowed to change history and get her revenge!

When she opened her eyes again, she was 13 again. Her mother had just passed and her father had yet remarried. To prevent history from repeating itself, she took careful steps.

However, she ended up discovering a 30-year-old mystery case that had been hidden all these while. She had been reborn as a beauty and was not going to give up on herself.

She was going to live out her best life with her alluring charms!

This is a story about the protagonist getting the system, going crazy in the biochemical apocalypse, producing aircraft and tanks, destroying zombies, saving good people and killing bad people.

- Description from novelbuddy

Karl Wagner is a disgruntled middle-aged instructor at the Bundeswehr Command and Staff College. He finds himself concerned about the direction which the German nation is headed in—just as he is killed by a terrorist attack. Only to awaken and find himself reborn as an infant, Bruno von Zehntner, the youngest son of a noble family renowned for its part in the German war industry a few years after the founding of the German Empire. Bruno, as he is now known, desires to rewrite history and ensure the German Empire emerges victorious in the coming century. And in doing so, finds himself entrenched in a world filled with Blood and Iron!

____this story sets in Japan that developed a little different history from yours.

This is how a Japanese Princess relieves her stress of the day by using the latest VRMMORPG, and while playing the villain there, the first town turns into whirlpool of chaos, smashed the underground organization in one hand and went for a coup. It’s literally a playtime diary of a girl who is called as “Genocider-san”, “Roaming Last Boss”, “A different person plays the game”, “Raid Boss”, “Ruthless”, “Calamity”, and such by the players.