Ravio is a traveling merchant from A Link Between Worlds. She shows up after Link attempted to fight Yuga but failed. He camped out in Link's house and turned it into his rental shop.
By the end of the game, it is revealed that he is Link's Lorule counterpart and unlike Link, he is a coward. He eventually developed the courage to stand up to Princess Hilda who plotted to take Hyrule's Triforce, to which she turned over a new leaf.