WHO I AM ???

Akira was practicing with his sword his master said; you are my strongest student ever today we have to go to the Volt palace to meet the king. At palace they came into the palace and when the king met them he said "hey master Kenji i thought that he's very strong but not trained well. King Volt asked Akira for a battle and Akira accepted his proposal gratefully. When they reach the ground then the fight starts Akira with his fast speed dodge all his attacks and injured the king with his first hit. King was shocked and asked who the hell are you !!!!!