The Crystal Star first appeared in episode 051, Atarashiki Henshi! Usagi Power Up (A New Transformation! Usagi Powers Up). When the Cardian Reci attacked Sailor Moon, her original transformation brooch shattered, causing her to detransform. Queen Serenity appeared before her in spirit form and gaver her the Crystal Star, which held the Ginzuishou inside it. Sailor Moon was able to transformat with this brooch using the phrase "Moon Crystal Power, Make Up!"