Naruto (manga)
Hiruzen Sarutobi, the Third Hokage, is the first Hokage shown in the series. He acts as a source of wisdom to younger generations. He is one of the few characters to always treat Naruto as a person. He is also the mentor of the Legendary Sannin. He wa killed by his wayward student while using the Reaper Death Seal. His soul, the Hokages' souls, and Orochimaru's souls were sealed into the reaper's stomach. During the Fourth Great Ninja War, Orochimaru released Hiruzen's soul from the Death Seal. He reanimated him so Sasuke could learn the events behind the Uchiha Clan Massacre. Sarutobi and the other three Hokage fought against Obito and Madara. They were put to rest following after Kaguya was defeated.