Meiou Setsuna is the mysterious and elegant Sailor Pluto.
She has very long, dark green hair and deep purple eyes. Nobody
knows her real age, but she is the oldest of the ten Sailor Senshi.
Setsuna keeps most of her emotions hidden from everyone else.
According to the manga, she was in love with Mamoru. She knew
that Mamoru and Usagi were destined to be together, so
her feelings towards him were never known.

As Sailor Pluto, she guards the gate of time and can rarely leave her
post. However, she does help the senshi when she is able to. She is
also the guardian of Chibiusa, the future daughter of Prince
Mamoru and Neo Queen Serenity.

Sailor Pluto is one of the four Outer Senshi. Even though she helps
the Inner Senshi when they need her, she remains mostly connected with the
other three Outers; Sailor Uranus, Sailor Neptune, and Sailor Saturn.