Henshin Ninja Arashi

Hayate becomes the powerful ninja Arashi after his father is killed protecting the secret of a mystical transformation technique. His new abilities let him draw on his inner powers as a Keshin Ninja. Hayate’s father, Tani no Maju, developed the Ninja Henshin Jitsu, which can transform people into superpowered spiritual ninjas. Majin Sai seeks the technique to strengthen the Chiguruma Tou, but Tani refuses, fearing its potential danger in the wrong hands. After Sai sends a Youkai Ninja to steal the secret, Tani dies—but first reveals the technique to Hayate, who uses it to become Arashi.