She's a nun living in a temple in Johto, situated between Mahogany Town and Blackthorn City. She follows a Buddhist-inspired religion centered on meditation—the founder achieved enlightenment by meditating alongside a Slowpoke until reaching a state of mental clarity and freedom from worldly concerns.
She apparently meditated with Gary at some point, which inspired Ash to try the temple training himself. He didn't make it through, though.
Content compiled by AnimeList.moe from publicly available sources.
