May, known as Mayumi in the Japanese and Italian versions, is Charlie McCay's niece which appears in the second arc. She is currently ill.


May appears as a young girl with blue hair and purple eyes. She wears a yellow shirt.


World Duel Carnival

May was going into surgery for an unspecified condition and was nervous. Charlie McCay, her uncle, gives her "Number 7: Lucky Straight" as a token of good luck and tells her to do "kattobingu".[1] The card comes later into Yuma's possession.[2]


  1. Yu-Gi-Oh! ZEXAL episode 32: ""
  2. Yu-Gi-Oh! ZEXAL episode 37: ""
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