Namiashi Raidou is a special jounin of the Hidden Leaf Village. He was also the Third Hokage's messenger during the chuunin exam's Final Round. During the invasion of the Hidden Sand Village, Raidou helped defend the Hidden Leaf Village and fought against the invading Sound and Sand Ninja. He was taken out of the battle when he was hit in the chest by 2 kunai knives. Fortunately he survived the battle.
Later, Raidou, Genma, Shizune, and Iwashi were sent on a mission by the Fifth Hokage. Raidou and Genma pursued and fought the Sound Four shinobi. They were quickly beat by them, they were outnumbered and outmatched. The Four got away and Raidou and Genma had serious injuries, Iwashi and Shizune rushed to their aid.