Setsuna Meiou

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Character Information
Name: Setsuna Meiou
Name (kanji/kana): 冥王せつな
Alignment: Crystal Tokyo, Moon Kingdom
Species: Human
Gender: Female
Lives: Tokyo
Occupation: University student, nurse (manga and musicals only)
Family: Unknown
Associates: Queen Serenity, Sailor Chibi Moon, Diana, Neo-Queen Serenity, King Endymion, the Outer Senshi, Reika Nishimura (manga and Crystal only)
Aliases: Sailor Pluto, Puu, Princess Pluto (manga and Crystal only)
First Anime Appearance: Death of Uranus and Neptune? Talismans Appear
First Manga Appearance: Act 31 Mugen 5 SAILORPLUTO Meiou Setsuna
First PGSM Appearance: N/A
English Name: Trista Meioh (dub), Setsuna Meioh (Mixx manga, Viz dub), Setsuna Meiô (Kodansha manga)
Actors: Chiyoko Kawashima (anime); Ai Maeda (Crystal); Sabrina Grdevich (dub 68-82), Susan Aceron (dub 83+); Veronica Taylor (Viz dub)

Setsuna Meiou was the civilian identity of Sailor Pluto. She appeared in most versions of the Sailor Moon series.


As Sailor Pluto, she guarded the Space-Time Door, and she originally could not leave her post, which left her very lonely. However, Neo-Queen Serenity allowed her to leave her post to help the other Senshi of the Outer Solar System during the events of the S season, and she was reincarnated as an adult in the present time during the Death Busters arc, where she took on the identity of Setsuna Meiou, a K.O. University student studying physics.

Setsuna dreamed of being a designer one day. She was good friends with Chibiusa and Diana, and was also very close to Hotaru Tomoe after the end of the Death Busters crisis. In the manga, she lived in a house with Haruka Tenou, Michiru Kaiou, and Hotaru in the Dead Moon arc and Stars arc.

In the musicals, Setsuna was much less serious and more playful, even referring to herself as the Madonna of the school infirmary. She would make jokes with the Three Lights and Usagi, who in turn teased her relentlessly about her age; when Setsuna asked to join Usagi's amateur detective group, she was labelled as an old woman in disguise. Despite her teasing of the younger girls, she always encouraged them to do their homework and be strong Sailor Senshi. In Tanjou! Ankoku no Princess Black Lady and its revision, she was revealed to live a very lonely life guarding the Space-Time Door, and valued Chibiusa's friendship. She also sympathized with Queen Beryl's love for Prince Endymion, comparing it to her own love for King Endymion, and helped the Queen escape from Sailor Galaxia's wrath. At one point Usagi compared Setsuna to her mother.


Chibiusa's incantation to activate her Key of Space-Time referred to a "time guardian" and "the father of the guardian, Chronos," which has led some fans to speculate that Sailor Pluto was the time guardian and the daughter of Chronos. In the manga, Sailor Pluto also made several references to being the daughter of Chronos, and in Act 20, King Endymion told Sailor Venus that Pluto "carries the blood of the god in charge of time, Cronos [sic]."[1] In the musicals, the song "Forbidden Hades" also mentioned that she had the blood of Chronos.

Setsuna became part of an adoptive family with Haruka, Michiru, and Hotaru when they took up residence together.


Fan Canon[edit]

  • In fan canon, Sailor Pluto and King Endymion are a popular couple due to some fans' interpretations of comments made by Sailor Pluto about Endymion in the manga. The idea of Pluto being in love with Endymion was mentioned in some of the musicals, especially in the song "Onna no Ronsou."


In the musicals, Setsuna was played by Miwa Hosoki, Rei Saitou, Yuki Kamiya, Seiko Nakazawa, Teruyo Watanabe, Yuuko Hosaka, Yukiko Nakae, Miho Yokoi, Mikako Ishii, and Chisato Minami.


  • Setsuna has a mortal fear of cockroaches.[2]
  • At the beginning of "Kaguya-hime no Koibito," Setsuna was shown purchasing alcohol. As one must be at least 20 years old to purchase alcohol in Japan, this could be a sign that she was at or older than that age at that point in the manga timeline.
  • Setsuna was the only one of the Solar System Senshi whose hair color in the musicals was not the same as it was in the anime.
  • Her civilian first name has the same Japanese pronunciation as the Buddhist term meaning "split second."
  • The word "setsuna" can sound like "setsunai" (切ない), which means "painful" in Japanese. Some fans have speculated that her name in the first English dub, "Trista" (derived from the Latin "triste," meaning "sad"), was chosen to take advantage of this pun.


  1. Act 19 Crystal Tokyo / King Endymion - Translated by Alex Glover
  2. Sailor Moon S Nakayoshi Anime Album 2

Civilian identities of Sailor Senshi
Solar System Senshi
Usagi Tsukino | Ami Mizuno | Rei Hino | Makoto Kino | Minako Aino | Chibiusa
Haruka Tenou | Michiru Kaiou | Setsuna Meiou | Hotaru Tomoe/Miss Dream | Chibi Chibi
Luna Tsukino | Shiva Shingetsu Astarte
Kinmoku Senshi
Kou Seiya | Kou Yaten | Kou Taiki | Princess Kakyuu
Shadow Galactica Senshi
Chuuko Nezu/Chuu Rat | Reiko Aya/Half Bird | Akane Karasuma/Manila Karasu | Nyanko Suzu | Miss Butterfly
Senshi in Parallel Sailor Moon
Kousagi Tsukino | Ami Jr | Rei Jr | Mako Kino | Mina Aino