Kakashi Hatake is the leader of Team 7 and the sensei of Naruto, Sasuke, and Sakura. Kakashi treats his leadership position with a detached manner, and is consistently late to meetings as a result. In a gaiden on Kakashi’s past, this is shown to be the result of an incident in which he witnessed the death of one of his teammates, Obito Uchiha, who gave Kakashi his Sharingan eye and imparted many of his habits, including his tardiness. With Obito’s Sharingan, Kakashi has amassed a reputation as a skilled and powerful ninja, earning the moniker “Copy Ninja Kakashi” (Kopī Ninja no Kakashi?). Although he mentors all three members of Team 7 early in the series, he concentrates on training Sasuke as the series continues, teaching him his Chidori technique; however, he is unable to prevent Sasuke from leaving the village to seek Orochimaru for greater power.