He is a perverted monk wandering the world to exterminate evil spirits and gods and can sense Ichiko's happiness energy. He gave Ichiko a magical item called the Soumin Shoura, which allows her to fight evenly with Momiji. Just like Momiji, and Inugami Momoo, he would also barge in Ichiko's place, either to eat or just loiter around.
Momoo, would sometimes call him "Bo-tan."