Kamikaze kaitou jeanne episode 7?!

Question: in episode 7, the one when miyako's dad almost gets fired. the 1 with the demon in the music box?
usually, the treasures that get "checkmated"...uh... disappear...so why is the music box still there....??

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Answers: in episode 7, the one when miyako's dad almost gets fired. the 1 with the demon in the music box?
usually, the treasures that get "checkmated"...uh... disappear...so why is the music box still there....??

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im not sure, but maybe the demon separated from the box, or the demon was possesin the item inside the box?

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