Editing Mai Valentine (section)

=== KC Cup ===
Mai spends the remainder of the series re-evaluating her life and trying to rediscover her passion for Dueling. In the dub, she mentions that she cannot face Joey and her friends until she can take responsibility for what she has done. She leaves her "Cyber Harpie" card with Valon, promising to return one day. However, in the dub, her relationship with Valon seems to have ended, and she does not explicitly state whether she will return to Joey.

Mai is invited to participate in the KC Grand Prix but only attends the final Duel as a spectator, where she watches Yugi defeat Leon von Schroeder. Although not actively involved in the final season's events, Mai appears briefly, such as when Pegasus considers her one of the Duelists essential to the Pharaoh's journey; she is seen sitting alone in her car, gazing at the clear skies. She is also referenced alongside Joey, Tristan, Téa, Kaiba, and Duke when Yugi reflects on how the Pharaoh helped him come out of his shell.

In the Japanese ending credits, Mai is depicted Dueling alongside Vivian Wong against the Meikyū Brothers (Paradox Brothers) on top of the Great Wall of China. However, in "Yu-Gi-Oh! GX," it is mentioned that the Paradox Brothers had only ever lost once, in their last Duel against Jaden and Syrus. This could mean that the brothers were either lying, as they often do, or that they defeated or tied with Mai and Vivian.