For the Uchiha, for her brother, little Izuna had long been prepared to give up everything. Even if it meant living as a girl, she would grow stronger, support her brother, and defeat those damn Senju on the other side.
Poor Mr. System tries everything he can to help little Izuna grow up healthy and not spend her whole childhood fighting. He pulls strings everywhere to unlock new story arcs for her.
The cursed Taisho era: trains roar, and countless lights turn the city into a place that never sleeps. As Izuna looks at the leader of the Demon Slayer Corps, she realizes something.
Taking jobs alone won't restore the Uchiha clan.
Izuna really doesn't want to lay power lines in this war-torn world, so she cuts off the path of energy development with one decisive move. Just look at chakra! Isn't it amazing? What do you mean, it's unscientific? It's unscientific, sure, but it's magic! (Not really.)
The kotatsu brings down a nation, the air conditioner saves the world.
Onlookers: As expected of Lady Izuna. She easily did what that white-haired guy next door couldn't. [deadpan]
[The synopsis isn't finished. I'll edit it when I think of more. Saving this idea for now, and I'll start writing it later.]
Theme: End the war and focus on science and technology
