Sam
A boy from the Commons who serves as a bellboy at the hotel the Friendship Cup duelists are participating in. He admired Jack as a symbol of the Commons, but after being likened to Tuning Magician, a low level card, he believes that Jack is looking down on people like him. Sam gives this card to Yuya and wants him to defeat Jack and give it back to him once he beats Jack. Only until he learned from Yuya when he uses Tuning Magician to perform a Synchro Summon that Sam realized that Jack was trying to tell him that just like each card has its own role, every person also has their own role. Sam's admiration for Jack also returned following this realization.