Kakashi when Anbu Army
Kakashi anbu joined the army when he was young masi. kakashi is a bright child so that he became leader. kemuadian shortly kakashi was appointed tutor of naruto, sasuke and sakura, with begetu he has become a Genin even though kakashi did not pass the Genin exam. But thanks to the skill and ability kakashi is equivalent to the other Genin maybe even more.
Cool style kakashi hatake