Cardcaptor Sakura

Sakura and the Mysterious Brooch (1x9)

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Sakura is still upset over Syaoran's comments from the other night. To cheer her up, Rika and Tomoyo take Sakura to a shop and the three of them each buy their own brooch. When Rika puts her own, she is possessed by the Sword Card and starts attacking Sakura.