Jiraiya (自来也, Jiraiya) was one of the legendary Sannin, along with Tsunade and Orochimaru, who was trained by the Third Hokage himself. He is a self proclaimed mega-pervert, and writes popular adult book series called Icha Icha, a favorite of Kakashi Hatake. He is also known as the Toad Hermit (蝦蟇仙人, Gama Sennin), because of his signature toad summonings.