Before the events of Blind Faith, this ninja was among the various Foot Ninja that the turtles fought sometime in the past. Leonardo blinded this ninja in battle, though Leo himself can never remember when or where this happened, much less who this ninja was. When the ninja was blinded, his other senses compensated and became sharper, but the Foot Clan retired him from combat and put him to work polishing other ninja's weapons. This indignity motivated the blind ninja to seek revenge against the enemy who maimed him.