The Sannin (伝説の三忍, Densetsu no Sannin; Literally meaning "Legendary Three Ninja") is the title given to the members of Team Sarutobi, namely Jiraiya, Orochimaru, and Tsunade. The title was received after their battle with "Salamander" Hanzo of the Village Hidden in Rain, who after a long and intense fight which resulted in their loss, declared that he was impressed and would let them live if they would take on new titles as the Sannin of Konoha.(Wikimedia)