Jadeite was eager in turning computers against humans by using them to drain the energy humans expend into yearning after scholastic achievement. For this to happen, Jadeite summoned his female servant – a youma called Garoben to assume the human form of an instructor from the Crystal Seminar Cram School. At the cram school, Garoben established a computer course and advocated to the students the use of a Crystal Disk. This disk was a 3.5” floppy disk containing “revolutionary” software which could turn anyone into a genius with prolonged usage. The software inside the disk actually contained brainwashing software that absorbed the energy of humans turning them into human zombies completely under the youma's control. Usagi and Luna discovered the true nature of the Crystal Disk after Usagi