Kuusou Kagaku Edison

A young girl named Milo resides in a secluded village at the base of a waterfall, enclosed by towering cliffs. The village elders have imposed a strict rule against venturing beyond these natural barriers. Within this isolated setting, Milo assists her community by creating various tools and devices they require. Her routine is disrupted when a mechanical creature descends from the waterfall and begins assaulting anything in its path.