Miranda is the Harbour Manager for a port nearby to New Island. When a huge storm engulfs the port she cancels the ferries and warns the trainers trying to to get to New Island that the storm has been predicted by prophets as the "Winds of Water" of will be the worst storm ever. She goes on to say that only a few Pokémon survived the previous "Winds of Water" storm and that theirs tears somehow restored the lives lost in the storm.
Despite her warnings a few trainers still attempt to get to New Island through the storm and Miranda says that this courage will make them Pokémon Masters and wishes them good luck