A vicious woman whose countenance was unmarred despite her poisoned spirit, Avory was perhaps the fairest of The Sisters, if only superficially. Though never placed in charge of her own mission, Avory nonetheless excelled in subterfuge and the fabrication of deceitful schemes to corrupt the Crystal Points. Seething with jealousy, particularly toward her sisters, Avory delighted in spreading hatred and loathing to putrefy the hearts of her victims.
Although she and Prisma were often assigned to work together towards the same goal, Avory frequently snared herself in petty squabbles with her older Sister, bringing nothing but ruin to their missions.
The competitions intensified as first Catsy and then Birdie were taken from their ranks by Sailor Moon, culminating in a mad dash for power during their final battle with the Senshi. Prisma, given the advantage with an amplification sceptre, turned it's horrible shock beams on Avory, nearly ending her life. Betrayed and abandoned, Avory finally realized how truly wicked and alone she had been, and pleaded with Sailor Moon to heal her.
