Serena receives an invitation to Pokémon Showcase Emcee Pierre’s dance party! The whole gang wants to go, but each attendee must have a date. Serena asks a nervous Clemont, so Serena’s rival Miette asks Ash! Jessie and James are also in attendance, as is Kalos Queen Aria, and the event culminates in an exciting Tag Battle: Serena and Ash versus Miette and James!

When Eevee gets knocked down, Serena steps in to encourage it...and thanks to the bond between them, Eevee evolves into Sylveon and wins the battle! Afterward, Aria excitedly calls Showcase judge Palermo to tell her about the wonderful performance of a girl and her Sylveon...