Jiraiya

Jiraiya is one of Konohagakure's Sannin. Famed as a hermit and pervert of stupendous ninja skill, he travelled the world in search of knowledge that would help his friends, the various novels he wrote, and, posthumously, the world in its entirety – knowledge that would be passed on to his godson and final student, Naruto Uzumaki, he is also knowed being the Toad Sage, cause he trained and live for sometime on Mt Myouboku with Toads and Frogs, and also for had a kinda pervy nature, some people even call him the pervy sage, Jiraiya also had a sage mode, but his sage mode isn't perfect, he was not able to properly balance his own chakra with natural energy, and as a result his appearance took on a number of toad-like traits when using Sage Mode: his nose grew bigger and gained warts on his nose, hands and feet, his teeth turned sharp, he grew a goatee, acquired toad-like eyes, and also webbed feets and hands he improved his manoeuvrability.