|Associates:||Sailor Chi, Sailor Galaxia, Sailor Theta (musicals only)|
|Aliases:||Shadow Bee (musicals only)|
|First Anime Appearance:||N/A|
|First Manga Appearance:||Act 56 Stars 7|
|First PGSM Appearance:||N/A|
|English Name:||Sailor Phi|
Sailor Phi ("Phi" (Φ) pronounced as "fai") was one of the Sailor Senshi subservient to Sailor Galaxia. She appeared throughout the Stars arc of the manga, and had an important impact upon the story. She also made appearances in some of the musicals, though there she played only a minor role.
In terms of hierarchy, it was made clear in the manga that both Sailor Phi and Sailor Chi were the two most loyal of Sailor Galaxia's followers, and were hence second only to her in Shadow Galactica. They were in charge of overseeing the cultivation of the Sailor Crystal-trapping Garden Crystals that surrounded Galaxia's cathedral, as well as overlooking the operations of the Sailor Animamates on Earth. Sailor Phi, in particular, was seen early in the story, informing Galaxia of Sailor Aluminum Seiren's death - while handing Galaxia the Sailor Crystals of Sailor Mercury and Sailor Jupiter - as well as apologizing for Sailor Tin Nyanko's failure in capturing Sailor Moon.
Phi and Chi were also arguably the strongest of Galaxia's followers; this was shown in full force during Act 56 and Act 57, where they killed six Sailor Senshi between them. Sailor Lethe and Sailor Mnemosyne were the first to fall to them, as a result of their treachery, then the Sailor Starlights were also killed in front of Sailor Moon and Princess Kakyuu's eyes.
During the final battle between Phi and Chi and the remaining Sailor Senshi, Sailor Phi attacked Sailor Moon, but was not successful. After the Garden Crystals were destroyed, it was Sailor Kakyuu who instructed Sailor Moon to destroy Sailor Phi's bracelets. Sailor Moon did just that, turning Phi into a pile of ashes.
- Galactica Plants Blizzard - Sailor Phi's only attack in the manga.
Sailor Phi appeared in several Sera Myu productions: Sailor Moon Sailor Stars, played by Yuuko Matsumoto; Sailor Moon Sailor Stars (Kaiteiban), played by Rieko Akimoto; and Eien Densetsu, its revision, and Shin Densetsu Kourin, played by Mika Komura.
In all their musical appearances, Sailor Phi, Sailor Chi, and Sailor Theta were Galaxia's foot troops: indistinguishable, rarely given dialogue, and subservient to the higher-ranking members of Shadow Galactica. There was no indication that they had a special role as Star Gardeners. Sailor Phi's outfit had green highlights, and she had orange hair.
In Sailor Stars, Sailor Phi used the alias of Shadow Bee while working under MC Fly. However, in Sailor Stars (Kaiteban), she was simply called Sailor Phi. Also in the Kaiteban, Sailor Phi (along with Chi and Theta) disguised herself as a backup dancer for the Three Lights while on Earth.
In Eien Densetsu, Sailor Phi disguised herself as a Juuban Municipal High School student. She also disguised herself as Rei Hino, as part of a scheme to sow mistrust among her allies. She has a shared attack with Sailor Chi and Sailor Theta, "Galactica Cry." After being beaten by Queen Beryl in combat, Sailor Phi was destroyed by Galaxia for her failure.
- While it is a popular speculation amongst fans that Sailors Phi and Chi were twins, it was never actually confirmed anywhere, not even in the Materials Collection, where such information would have been pertinent to mention, such as in the case of Sailor Lethe and Sailor Mnemosyne.
- Phi is the 21st letter of the Greek alphabet.