Stoneskull was a Ogre Bushi who survived outside of the Shadowlands with not only his strength but his cunning. He was a Free Ogre, not one of the brutes bound to Jigoku's will. Despite it, Stoneskull had decided to throw its lot with the forces of Daigotsu. In 1160 it led a group of bakemono and ogres against the secluded Valley of the Centipede. Stoneskull was a skilled and practiced deceiver, who attempted to parley with the Moshi defenders, posing as an enemy of the Shadowlands, attacking as soon as the humans' guard was down. Stoneskull fled when its forces lose the upperhand and allowed his followers to be slaughtered.