ตอนที่ 1: โมโมะเดินทางไปยังจิวเวลพาเลซเพื่อกลายเป็นเพทิตเลดี้และพบกับรูบี้

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Momona is a girl in Jewel Land who is longing to see her older cousin getting married. However during the reception, she is transported to the prestigious Jewel Palace alongside other girls. She then meets Ruby for the first time, receiving a pen-like item. As Ruby tells her to become a Petit Lady so she can be crowned a Lady Jewel, Momona has some tough decisions if she can do it. (Source: Wikipedia)