Ep. 1: The trio seeks Mirror Ball fragments in Jewel Land while meeting the human Kira Deco 5.

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In Jewel Town, Ruby, Garnet, and Sapphie gather at the Kira Kira Shop. The following day, Sapphie discovers a slideshow that fell from a bookshelf before showing it to her friends. She explains the Legend of the Jewelpets and the Mirror Ball to them. Motivated by this information, the group travels across Jewel Land to search for the Mirror Ball fragments. During their quest, they encounter strange individuals from the human world known as Kira Deco 5. This meeting occurs as they continue their search for the legendary items throughout the region.