GM-Casero is the manager of Reborn Sacred CaseroSquad.
He started in July 2002, but left his first team Royal Superb Caserosquad early 2005.
Casero started again in November 2005.
He has been Moderator from June 2003 until he became Gamemaster in September 2004.
Currently Casero is Gamemaster again since January 2006.