Crystal Disk

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The Crystal Disk in the anime

The Crystal Disk was a special disk given to students of Crystal Seminar, which was supposed to enhance their study skills and intelligence. In reality, it was part of a plot by Jadeite and his Youma, Garoben, and would sap the energy of the students who used it. It appeared in both episode 8 of the anime and Act 2 of the manga.


  • Originally, the Crystal Disk was a three-inch magnetic disk widely used as an external memory medium for personal computers at the time, but in the reprint edition of the manga and in Crystal, it was changed to be a CD to fit with the change in technology.