Kingdom Hearts: Chain of Memories/Sora's Story

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After sealing Kingdom Hearts, Sora, Donald, and Goofy set off on another adventure to find the King and Riku, knowing Kiari is safe at home on Destiny Islands. After traveling for a short while, the trio comes upon a mysterious castle, Castle Oblivion.

Sora's story takes place after the events of Kingdom Hearts. The previous game doesn't need to be played to understand this game, but it will help with names and what happened.