Hokushin has long sky blue hair with his bangs going over the right side of his face down to his chest area. He also has big black-coloured eyes. He wears a white very thin headband covered by his hair. He wears a beige-coloured vest-like shirt that goes down to his knees. He wears a purple-coloured shirt underneath it. He also has a black lower arm sleeve on each lower arm area and a thick black belt around his waist.
He, Nagare, and other unnamed ninja were sent by Hōki to pursue Chishima, who easily evaded them. He sought to advance in the Watari ninja by defeating Kakashi Hatake. He shadowed Kakashi, Neji Hyūga, and Tenten as they pretended to leave the village, only to find that he had been tricked when they used a Body Replacement Technique upon some monkeys. During the final battle, Kakashi easily defeated him after surprising him with a Body Replacement Technique, noting the effortlessness in which Kakashi defeated him.