Naruto Uzumaki is a young boy who has the Nine-Tailed Demon Fox sealed within him. Twelve years before the start of the series, the Nine-Tailed Demon Fox attacked the ninja village Konohagakure, slaughtering many people. In response, the leader of Konohagakure the Fourth Hokage sacrificed his life to seal the demon inside Naruto when he was a newborn. Konohagakure, however, regarded Naruto as if he were the demon fox itself and mistreated him throughout most of his childhood. A decree made by the Third Hokage forbade anyone mention the attack of the demon fox to anyone. Years later, Naruto was tricked by the renegade ninja Mizuki into stealing a forbidden scroll, but was stopped by his teacher, Iruka Umino. That encounter made Naruto realize he was the container of the demon fox.