Susumu Shibatsu

Iweko Shibatsuwas the second son of Iweko I and Iweko Setai. He was raised by the Spider Clan as a ward. According to Moru, the Imperial Advisor, the Empress seconded him and not his older brother and heir apparent, Iweko Seiken, to Daigotsu's Clan in order to ensure that no "corrupted scion" would succeed her. Furthermore, Iweko Seiken was well acquainted with various clans and was brought up to be martially powerful, so that he could withstand any attempt to overthrow him.