Kyoko participates in the Royal Tennis Academy in Senior Class located at the Mushroom Kingdom. Her tennis doubles partner is Micki, and holds the third rank in the Senior Class singles. According to Emily, she's an incredible player with much potential. Even if she loses a game, she considers the loss to be an eye-opener and promises to practice harder so she can improve. Currently, she hasn't regain 100% of her confidence yet, as she shows little interest in going after a varsity ranking.