"I was afraid it might affect the development of this world.
And it might change the people's lives here.
Even though I have done many things,
I have been holding back the whole time."
Umm... A little late for that. I mean when you really come down to it, items in a dollar store which are designed to function using the cheap as possible materials and production of the "modern" world, that in itself is decades? centuries? ahead for the insekai lands. She wears modern survival equipment, crossbow, and firearms which any person who watches her in action would be looking for a way to steal, learn, copy, just figure out what they are...
Her commerce products would effect the world far more than a modern military army that she can poof away and say they are warriors of a far off land or plane of existence.