When Alice La Signora traveled through Inazuma years ago, she formed an enduring bond with the Naganohara family. Some of the fireworks formulas passed down through Yoimiya's family owed their existence to Alice La Signora.
However, Yoimiya's father had exercised some restraint with Alice's fireworks formulas and had not copied them wholesale. Otherwise, the average elevation of Inazuma's Narukami Island would have dropped by at least a dozen meters by now.
Because of this, Alice had complained that Brother Naganohara was far too conservative in his understanding of fireworks formulas. He always diluted their original power until the explosions could no longer cause any obvious physical changes to the environment, relying solely on burning different metals to create monotonous visual effects.
And he was only willing to hole up in his workshop doing experiments. What fun was there in that?
What a waste, such a waste! He was simply wasting the fireworks formulas she had given him.
So Alice turned her attention to the still-young Yoimiya. During a festival, Alice approached the innocent little girl, collected plenty of candy with her, and tested many new formulas. They had an absolute blast.
Although Inazuma's fire brigade escorted them to a deserted stretch of coast afterward, there was no denying that little Yoimiya had already shown a talent for gunpowder that rivaled her father's, even offering Alice a constructive idea.
Alice even entertained the thought of taking Yoimiya along with her, but the Raiden Shogun kept her under watch the entire time, thwarting that idea.
After Alice left Inazuma, Yoimiya's father went to tremendous lengths to undo the dangerous ideas Alice had instilled in her. And once Yoimiya grew up, she too realized just how terrifying Alice La Signora's ideas back then had been.
Now, Alice's daughter, Klee, had come specifically to