Jantou
Jantou helped operate one of the most expensive gambling parlors in the Fire Country. When Tsunade came to his hall, he and his partner Souzu used her "Legendary" sucker status to make a lot of money off her. Later, when Jiraiya asked around to see if anyone had seen her, he and Souzu were able to provide Jiraiya information as to her location.
Mangaography