Master

Spider Demon is an old man who murdred Nazuna's parents along with Village. He disguised himself as a human monk and raisied Nazuna up without her knowing it. He was awaiting Inuyasha and his party, in Nazun'a House, so that he can snatch the Shikon Shards. After a big commotion about Inuyasha changing into a human, and then changing back, Inuyasha defeated Spider Demon. Also, after Inuyasha defeated him, the Shikon Shards were transformed into a 1/2 ball of the origional Jewel of the Four Souls.