Genjo

He is one of the youngest members of the Anbu Black Ops, being accepted at age 7. He became a genin at age 4 and a chunin at age 5. He was a jonin at age 6 and applied for the anbu and got in. He then resinged from the Anbu at age 12 to work with other genin as their teammate, even though he is techically a jonin.

POWER

He is an extremely powerful shinobi as he able to join the Anbu at age 7 and he has a wide variaty of skills to prove it. Even the 6th Hokage Kakashi has noted of his skills being impressive. He is very powerful for his age. He has many techinques, such as the current runner which is a bolt of electricty that he can control and can seek other chakras nearby and attack them. His most powerful move is the Electric One. Where he charges forward bursting with electric chakra, and rains the pain on the opponent before frying then with the electric pulse.