Ryun Uchiha, was an academy student around the same time as Naruto and friends. Though he graduates at the age of nine, three years earlier than Naruto's class. He was admired by many want-to-be ninja and eventually gained the recognition of the Third Hokage. At the time there was no Jonin available to put him on a three man squad. So Ryun was given to Danzo to be trained as an ANBU.