CereCere is the trapeze artest in the Dead Moon Circus. The Dead Moon Circus is controlled by Zirconia, who was under the command of Queen Nephrenia.|
How ever the Amazon Quartet was created by NeoQueen Serenity to protect ChibiUsa. Before they were captured (In balls that they now fight with while they were sleeping.) by Queen Nephrenia, they were known as the Asteroid Senshi. CereCere was named after the asteroid Ceres.
CereCere is the flower lover of the Amazon Quartet (evident in her outfit.)
The Asteroid Senshi are never seen in the anime.