Fudo Myoo - also known as Acala - ("the immutable one"), the Buddhist divinity of fire, is one of the most important beings venerated at Akakura Mountain Shrine. He is known by his flaming sword and rope, with which he slashes away material connections and binds up evil-doers. His sword is used at Akakura in the Sword of Fudo healing ritual several times each year.

Fudo is the principal deity of the Five angry Lords of Light, venerated at Akakura in the Godaimyoo (Five Lords) hall. Fudo serves as tutelary deity to many of the shrine's kamisama spirit mediums. He has intimate associations with the dragon divinity and with the waterfall of Fudo, one of the most important sites of mountain ascetic discipline (shugyo).