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Butlers are servants to a particular person or family house. They first appear as an enemy in Power Master 1: A Strange Journey.
Power Master 1: A Strange Journey
Butlers are seen in Gora Mansion and the area surrounding Gora in the Land of Moneo. According to both Fade and their card's description, the Butlers were destroying the town of Gora by gathering materials from it in order to rescue Fade. In Power Master 1: A Strange Journey, they continue to serve in Gora Mansion even after death.
A spirit who used to serve the family in the mansion and continues to do so after death. Destroyed the town to build materials to help Fade escape.