Endro! Season 1 Episode 9

Naral Island is a mysterious island that's hard to call either small or large, and there are many unexplored regions sleeping within. Yet the Hero's sworn friend and famous supreme Cartado Master, Mather Enderstto, was another who was intrigued by such unexplored regions. However, she ultimately managed to discover one. Yes, the forbidden land where the secrets of Cartado lie... That was the beginning of her adventure into the taboo. (Excerpt from "Top 1000 Unexplored Regions of Naral Island")