From the oracle Manga: Chi and Phi are not Animamates. They are in charge of the Animamates, and they are the messengers of Galaxia, keeping her informed as to the progress and performance of the Animamates. They are called the Star Gardeners because they guard the Star Garden just outside of Galaxia's palace, where they cultivate the Sailor crystals they have collected. Sailor Chi's hair comes down in one long strand across her face, and she wears a lighter outfit than Phi with pants and a covered midriff. Sailor Phi's hair comes down in two long strands in the back, and wears a darker outfit with pants and a showing midriff. Sailor Chi is often called Sailor X because the Greek letter "Chi" is an X. However, "Sailor X" is considered a fanfiction character, and Chi should never be called Sailor X unless the Greek character of "Chi" is understood.