When one of his men is converted into an Apeman by Hihi Zuno, Arashi tracks down the Zuno Beast and uses him to commit crimes before Yuusuke battles Arashi in a fist fight prior to Oblar's interference. Impressed with Arashi, Bias accelerates his intelligence to the point that he built a chamber that modifies him into his current form. Soon afterward, Bias decides that Ashura is a hopeless candidate and strips him of his super-intelligence. Back to being Arashi, he ends up being befriended by the Liveman and Goh before strapping himself with dynamite to makes a suicide run on Battle Zuno.