The 6 Goha Siblings are the true presidents of the Goha Corporation.
Each Goha Sibling appears to represent a different Attribute that can be inferred by the color of their robe, and each practices a hobby that seems to be inspired by that Attribute and uses a Deck that includes exclusively monsters of that Attribute. While the Goha Siblings refer to themselves as the six Goha presidential siblings, the identity of the sixth sibling is unknown even to the other siblings (up until Episode 77, at least), though Yuo acquires their presidential badge through unknown circumstances.
