Zoisite was Malachite's pupil and lover. They both had a pure hatred of the scouts and Tuxedo Mask. She hated TuxedoMask alot. Queen Beryl finally kills her because of all her failed attempts. Melachite was her successor and determined to avenge her death.

Here's a little Did you know. Did you know that Zoisite is actually a guy in the original version? Well she is. Which means tht Zoisite and Malachite were a gay couple, but of course DIC didn't want the american audiance to see that so they changed his gender along with other stuff in Sailor Moon.