Setsuna Meiou
冥王 せつな
Japanese: 冥王 せつな
Romanji: Meiō Setsuna
Residency: Space-Time Door; Tokyo, Japan
School(s): Mugen Academy

University student, nurse, Sailor Guardian


Solar System Sailor Guardians, Reika Nishimura, Queen Serenity, Neo-Queen Serenity, King Endymion, Diana


Moon Kingdom, [Crystal Tokyo

Birthdate: October 29 ()
Age: 19-20

178 cm or 5'10"

Gender: Female
Species: Human/Deity
Blood Type: A [1]
Likes: Physics, green tea, shopping, sewing, fashion
Dislikes: Cockroaches, eggplant, the study of music
First Appearance
Manga: Act 31 - Infinity 5, Sailor Pluto, Setsuna Meiou
Sailor moon pluto
"I am the Keeper of the Door of Space and Time. I am Sailor Pluto. Guardian of the Underworld."
— Sailor Pluto's Introduction

Setsuna Meiou is the civilian identity and present-day incarnation of Sailor Pluto.

Nomenclature & Etymology


Setsuna: Even though her name is written in hiragana and is not inherent, Setsuna can mean "moment", relating to her powers over time, or "sorrow".

Meiou: The kanji for Mei means "dark" while the kanji for ou means "king", based on the Japanese name of the planet Pluto (冥王星 Meiohsei "Nether King Star", the given title of Pluto, the Roman god of the underworld).

Combined her name could be read as "Momentary Dark King" or "Sorrowful Dark King". 

In the original English dub, Setsuna was renamed "Trista" that is derived the latin triste, meaning sad which fits Setsuna's personality. 



Setsuna is a young adult woman who has knee length dark green hair with some in a bun and the rest hanging down freely, and red eyes. In comparison to the other Senshi, her skin is darker.

Some depictions give her lighter skin and change her eye color from red to purple.



Setsuna Meiou is a college student while the others are still in middle or high school. Setsuna never assumes any type of official leadership role. Even among the Outer Senshi, she frequently defers to Sailor Uranus and Sailor Neptune. She has a special relationship with Chibiusa.


Sailor Pluto was the Princess of Pluto and the daughter of Chronos, the God of Time. One day when she was a child, Queen Serenity assigned her to the Door of Space-Time to guard it and instructed on the three taboos she must never break: She must never leave her post, she must not allow anyone to travel through time, and she must never use her powers to disrupt the flow of time in any way. Breaking the last taboo would mean the end of her life.

Black Moon Arc

Sailor Pluto had been guarding the Time Gate since the Silver Millenium. One day, Chibiusa met Sailor Pluto and they became close friends. After Crystal Tokyo is attacked by the Black Moon, Chibiusa stole one of Sailor Pluto's time keys and traveled to the 20th century.

When the Sailor Senshi, Tuxedo Mask and Chibiusa travel to the Time Gate, Sailor Pluto attacks, trying to prevent them from using the gate until she sees Chibiusa and allows them to travel to the 30th century.

When Prince Demande tried to connect the Silver Crystal of the past and future to end everything, Sailor Pluto stopped time, knowing it would cost her her life. Her death broke Wiseman's hold on Chibiusa and she became Sailor Chibi Moon.

Infinity Arc

In the Infinity arc, Setsuna is introduced at the end of Act 30, as a student at K.O. University studying physics, who becomes friends with Reika Nishimura. Due to the previous events at the end of the Black Moon arc, she has no memory from being Sailor Pluto. In the beginning of Act 31, she and her professor are discussing strange distortions around the Sankakusu.

Later, Setsuna falls victim to Tellu's Tellun plant, and collapses on the ground, with Haruka and Michiru sensing that someone that is close to them is in danger. Setsuna calls for help, and a voice inside her commands for her to awaken, causing the symbol of Pluto to appear on her forehead. This also causing for the symbols of Uranus and Neptune to appear on Haruka's and Michiru's foreheads, and the three appear in the same room together. In effect, she becomes Sailor Pluto again.

Dream Arc

After the events of Mugen Academy, Setsuna, Michiru, and Haruka live together to help raise baby Hotaru. While at the observatory, she witnesses the eclipse and felt the dark force of the Dead Moon Circus coming from it. When she tried to transform, it failed. After Hotaru recreated a projection of the solar system, she sees that the solar eclipse unleashed the forces of the new moon onto the Earth and Moon, however, the outer Senshi believe that they are not needed, because they cannot transform. After Hotaru reawakens as Sailor Saturn, she presents all three with their Sailor Crystals, they transform into Senshi and join the fight.

Stars Arc

As Eternal Sailor Pluto, she is now in her final Sailor form. She, again, fights alongside the other nine Eternal Sailor Soldiers' to battle the evil Galaxia, and stop her from dominating the entire Milky Way Galaxy and beyond by stealing the Sailor Crystals of every Sailor Senshi in existence.

She eventually returns to her own world to defend Charon Castle with Sailor Saturn from Galaxia's imminent attack. Ultimately, both Pluto's and Saturn's is taken and she fades away and is revived as Sailor Galaxia's mind-controlled servant. After her controlled form is destroyed by Sailor Moon, Sailor Moon is able to defeat Chaos and Sailor Pluto and the other Senshi are restored to life.



  • Pluto Planet Power, Make Up
  • Pluto Crystal Power, Make Up

Weapons and Items

  • Garnet Orb
  • Garnet Rod


  • Dead Scream
  • Time Stop
  • Chronos Typhoon
  • Garnet Ball
  • Dark Dome Close
  • Galactica Cannon
  • Galactica Planet Attack
  • Dimension Dance
  • Strict Sweep
  • Action Spinster
  • Destiny Spinster
  • Twilight


In the concept art in the Materials Collection, there is a sketch where Sailor Pluto has gray skin. Her belt and hair were also different and she appeared physically younger. In another sketch that more closely resembled her final depiction, she is lacking her chain belt. The Garnet Rod also looked different.


  • She is the tallest among the Solar System Sailor Senshi with the height of 5'10" (about 178 cm), but ironically, her guardian Planet is the smallest.
  • Setsuna is the only Sailor Senshi who did not have concept art in the Materials' Collection. Sailor Pluto did, however.
  • Setsuna's apartment number in the Infinity arc in "1209". Switching the "2" and the "0" around will reveal "1029", the numbers of her birthday. (Setsuna's birthday is October 29, or 10-29).
  • In the reprints of the manga, Naoko Takeuchi noted that one of the logistical troubles with the manga was Setsuna having a different skin colour to everyone else.
  • 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, Chronos [sic]."[1] In the musicals, the song "Forbidden Hades" also mentioned that she had the blood of Chronos.
  • Setsuna took up residence together along with Haruka, Michiru, and Hotaru.
    • Hotaru refers to the three as "Haruka-papa", "Michiru-mama", and "Setsuna-mama" in the Japanese version when she is still young.


Setsuna Act 44
Suspecting Something
Setsuna in the manga
Setsuna introducing herself to Reika at the end of Act 30
HSMHM Profiles Manga
Hotaru, Setsuna, Michiru, Haruka, and Minako's profiles from volume 10 of the tankoban version of the manga.

All 10 of the Senshi (colored in blue and yellow) in Artbook 3. Art by Naoko Takeuchi
All 10 of the Inner Senshi. Artbook by Naoko Takeuchi
All 10 of the Senshi (in black dresses. Art by Naoko Takeuchi
All 10 Senshi in swimsuits. Art by Naoko Takeuchi

Kanzenban 10
The Inner Senshi on the cover of volume 10 of the Kanzenban manga.


  1. Setsuna Meioh at Sailor Moon Official Website (Japanese)
Sailor Senshi

Solar System Senshi Sailor MoonSailor MercurySailor MarsSailor JupiterSailor Venus/Sailor V
Other Senshi Sailor Luna
Civilian Identities Usagi TsukinoAmi MizunoRei HinoMakoto KinoMinako AinoLuna Tsukino
Allies Mamoru Chiba/Tuxedo MaskLunaArtemis

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