Sylvius!!

The third hokage of the konoha village was taking a walk in the outer regions of the village and there he found a boy lying there who was badly injured. The boy was holding a broken sword in his hand which was almost destroyed and was fading away. The third hokage noticed that the boy's strength was fading away so to save the boy he brought him to the village.

In the village he assigned the best medical ninjas to treat the boy. After some time the child's condition improved but he remembered nothing about his past life except his name sylvius.

The boy was almost 10 years old and the third hokage arranged a house in the village to allow him to stay there. Slowly, the boy recovered from his injury and began to regain some of his strength but he was still very weak so the hokage used to visit him everyday and spend a lot of time with him.

One day, the boy saw the third hokage practicing his ninjustu and become a fan of ninjutsu.