Jiraiya

Jiraiya is named after the character of the same name from Jiraiya Goketsu Monogatari (児雷也豪傑物語, "The Tale of the Gallant Jiraiya"). The Jiraiya in this story excelled in summoning a giant toad (the toad itself was sometimes called "Jiraiya") and toad magic. In that story, Jiraiya and Tsunade were a married couple. There, his name is written as "児雷也" meaning "Young Thunder" which in turn comes from the name Garaiya (我来也, "I came") from the Chinese story Kaishi (諧史).

Masashi Kishimoto originally planned to draw Jiraiya with a different design and with a different style of hair. He also intended for Jiraiya to summon Toads that were of a similar size to humans. However, this idea was deemed a failure. During an interview, he comments that, of the student-teacher relationships in Naruto, Jiraiya and Naruto's is the one he likes the most.

Jiraiya grew up in the village of Konohagakure under the tutelage of the Third Hokage. As he grew older Jiraiya and his two teammates, Orochimaru and Tsunade, collectively became known as the "Legendary Three Ninja" (伝説の三忍, Densetsu no Sannin) due to their exemplary ninja abilities. For most of his adult life, and thus many of his appearances in the series, Jiraiya periodically leaves his hometown to explore the Naruto world. Although he spends comparatively little time in Konoha, Jiraiya maintains a deep loyalty to the village; soon after his introduction, he makes clear his intentions to kill Tsunade if she should ever turn against Konoha despite their history together. Throughout the series Jiraiya's talents and dedication to the village lead to him being offered the position of Hokage, Konoha's protector. Because of his perceived weaknesses (his inability to keep Orochimaru from becoming a criminal and his failure to protect his teacher and his student from dying in their own tenure as Hokage) Jiraiya always declines the offer, feeling that he is unworthy of the responsibility.

Jiraiya is a self-proclaimed super-pervert with no equal. During many of his appearances he makes at least one attempt to either hit on women or spy on them while they bathe. While Jiraiya makes no attempt to hide these habits, going so far as to brag about his talents with voyeurism, he gets irritated whenever series protagonist Naruto Uzumaki affectionately calls him "Pervy Sage" (エロ仙人, Ero-sennin). His interest in women has on occasion been his downfall; sometime in the past he tried spying on Tsunade, and was subsequently fatally wounded when she caught him in the act. Jiraiya's experiences in love, particularly those with Tsunade, are recorded in his Make Out (イチャイチャ, Icha Icha) series of novels. The books, a favorite of Kakashi Hatake, are runaway best-sellers within the Naruto world and have earned Jiraiya a vast wealth.Before penning the Make Out series Jiraiya published an autobiography where the main character was named "Naruto". Despite the book's poor sales Minato Namikaze, Jiraiya's student, named his son after the main character in the hopes that he would grow up to be just like the Naruto in the book.

Across the Naruto world Jiraiya is known as the "Toad Sage" (蝦蟇仙人, Gama Sennin). Having been trained by toads to utilize their secret arts, Jiraiya can summon them to his side as allies during battle. If need be he can also summon parts of toads, on one occasion blanketing an area with a toad's esophagus to immobilize and trap an opponent. In the second half of the series, around the time of his death, Jiraiya is shown to possess a number of toad-based abilities not wholly reliant on summoning. Most prominent of these is being able to enter "Sage Mode" (仙人モード, Sennin mōdo), a transformation that increases his physical abilities and the strength of his attacks. Despite the advantages the form allows him, he does not like entering Sage Mode; the transformation gives him a bulbous nose, webbed hands, and a number of warts, all of which make him unappealing to girls.

While toads make up the bulk of his ninja abilities, Jiraiya displays a variety of miscellaneous talents throughout the series. He can breathe fire, create swamps to immobilize enemies, and grow and sharpen his hair for both offensive and defensive purposes. He was taught how to use the Rasengan by Minato, which Jiraiya in turns teaches to Minato's son, Naruto Uzumaki, shortly after his introduction. At various times in the series Jiraiya has been shown to be knowledgeable with seals. This expertise most commonly comes to light in relation to the nine-tailed demon fox sealed within Naruto's body, a force Jiraiya constantly tries to help Naruto gain control of.

Jiraiya makes only sporadic appearances for most of the series, returning to Konoha after long absences to report on information he has learned during his travels. Initially this information concerns Orochimaru's continued efforts to destroy Konoha, though as the series progresses he also begins reporting on the criminal organization, Akatsuki. During some of his returns Jiraiya takes the time to train Naruto, teaching him his own signature abilities and how to control the nine-tailed demon fox sealed within him. His training with Naruto marks the gap between Part I and Part II of the series, wherein Jiraiya takes him away for two-and-a-half years of training.

In Part II, Jiraiya begins investigating the leader of Akatsuki, Pain. In the course of his investigation he is drawn into battle with Pain, a fight that spans most of Naruto manga volume forty-one. During this volume parts of Jiraiya's background are explored. While he trained with the toads a prophecy concerning Jiraiya was made: that he would someday have a student with the power to save or destroy the world. Soon afterwards he met Nagato, a boy Jiraiya assumed to be the subject of the prophecy and thus trained him to be the world's savior. Believing Pain to be Nagato, Jiraiya tries to kill his student to prevent the world's destruction.At the battle's conclusion Jiraiya realizes that he was mistaken; not only is Pain not Nagato, but Naruto was actually the boy foretold in the prophecy. Before he is killed, Jiraiya sends the secret of Pain's identity to Naruto and the rest of Konoha, and then dies happily knowing he did all he could for the future hero of the world.