This family would soon grow when he was introduced to the other members of his Genin team; Sakura Haruno and Sasuke Uchiha.
Naruto became a rival to Sasuke, which formed an almost brother-like bond between the two.
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Thanks to the incredible amount of filler content in Yoroi actually returned as a villain.
He appeared as the bodyguard of Amachi, who was one of Orochimaru's former scientists.
Kakashi was planned to appear in the second issue as Naruto's new teacher, but Kishimoto's editors suggested to him that he should create a rival character for Naruto as well, which would give him someone to compete against.
Sasuke's creation was fairly last minute, with the details of Itachi and the Uchiha massacre only being vaguely hinted at within the story, as they were still being developed.