Her name is Meiou Setsuna, a.k.a. Sailor Pluto. She's the guardian that makes time travel possible. She don't really help the Senshi. Just here and there 'cause she has to guard the gates.
Sailor Pluto's Stats and Powers
Real Name: Meiou Setsuna
Birthday: October 29
Astrological Sign: Scorpio
Blood Type: A
Favorite Color: Dark Red
Favorite Food: Green Tea
Least Favorite Food: Eggplant
Favorite Subject: Physics
Worst Subject: Music
Strong Point: Sewing
Dead Scream--When this word is whispered, a massive sonic scream appears, destroying many things.
Dark Dome Close--Meiou can't use this 'cause of the danger it will pose to time.
Sailor Pluto Linx
Sailor Pluto--Mostly bio and pics.
Shrine to Meiou Setsuna/Sailor Pluto--A good bio page.
Kaeli's Pluto Gallery--A big image gallery of Meiou.
Pluto Planet Power--A nice page by a very dedicated fan of Sailor Pluto!
Go to Neptune's Ocean Shrine or go to Moon Kingdom's Saturn Shrine!