Sailor Neptune

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Sailor Neptune
Sailor Moon character
Michiru in her Super Sailor Neptune form as seen in the 1990s anime.
First appearanceSailor Moon chapter #27: "Infinity 1 – Premonition" (1994)
Created byNaoko Takeuchi
Voiced byJapanese:
Masako Katsuki
Sayaka Ohara (Sailor Moon Crystal)
Lauren Landa (Viz Dub)
Barbara Radecki (CWi Dub)
In-universe information
AliasMichiru Kaioh
Princess Neptune
AffiliationsSailor Soldiers
Shadow Galactica (briefly)
Powers and abilitiesGeneration and manipulation of seawater,[1] precognition, astral projection

Sailor Neptune (セーラーネプチューン, Sērā Nepuchūn) is a fictional lead character in the Sailor Moon media franchise. Her alternate identity is Michiru Kaiou (海王 みちる, Kaiō Michiru, renamed "Michelle Kaioh" in some English adaptations), a teenage Japanese schoolgirl. Michiru is a member of the Sailor Soldiers, female supernatural fighters who protect the Solar System from evil.

Introduced in the third story arc, Sailor Neptune fights alongside her partner and lover Sailor Uranus. In both versions of the story she is portrayed as elegant, sophisticated, capable of sharp anger, occasionally cold, and fully dedicated to her duty as a Sailor Soldier. She possesses powers associated with the sea, precognitive ones, as well as powers granted by her magic mirror.


Michiru with a cello, as drawn by Naoko Takeuchi

Michiru is formally introduced in the third story arc, although she appears in silhouette alongside Sailor Uranus in episode 89, a "teaser" to Sailor Moon S. She is portrayed as a very polite, calm character in the series. She dislikes being patronized even if not doing so would hurt her feelings, and subsequently will not indulge people. This is alluded to in her backstory, explaining that she was congenial but generally not social. Michiru is also graceful and delicate, with an aura of sophistication. She is clearly intelligent, and this usually manifests itself through art and music. Usagi (to whom this observation is especially relevant) once commented that Michiru was the ideal example of a princess.

Michiru attends Mugen Academy with Haruka (and the younger Hotaru Tomoe) when she is first introduced. In the manga, after Mugen is destroyed, she and Haruka later attend the same high school as Usagi and the other girls. It is never mentioned where they go after this in the anime, but the two of them are shown driving away in their last appearance in Sailor Moon S, and during a made-for-TV special set during the following season, they are shown staying at a hotel elsewhere in Japan. According to the musicals, Michiru had experience studying abroad.[2] Michiru's closest bond is with Haruka, and Takeuchi has explicitly stated that the two are in a lesbian relationship in both the manga and the anime[3] as well as the musicals.

In the anime adaptation, Michiru briefly flirts with Seiya, at that time a man, asking him to help her unzip her dress. Her stated intention, earlier in the episode, is to learn Seiya's motives out of fear that he is a threat to the planet.[4] This flirtation does not occur in the manga, where Seiya is always a female and plays a much more minor role. However, in the Infinity arc, Michiru appears as temptation for Mamoru, paralleling Haruka being used as temptation for Usagi. Though she never makes any of the advances on Mamoru that Haruka makes on Usagi, Usagi is jealous of her because she sees them together.

Michiru is deeply artistic and is the Sailor Soldier most associated with the arts. Her known skills include the violin, swimming, and painting; of all her skills, her strongest is as a violinist, which is also her greatest dream.[5] She likes all her classes, especially music, and belongs to the music club at school as well as the swimming club.[6] In the manga, she collects cosmetics; in the anime, she loves to swim, often using the water as a way to relax.[7] Her favorite food is sashimi, while her least favorite is kikurage mushrooms. She also dislikes sea cucumbers for unclear reasons, and her favorite color is Marine blue.[5]

Aspects and forms[edit]

As a character with different incarnations, special powers, transformations and a long lifetime virtually spanned between the Silver Millennium era and the 30th century, Michiru gains multiple aspects and aliases as the series progresses.

Sailor Neptune[edit]

Michiru's Soldier identity. She wears a uniform colored in teal and cerulean, and unlike most of the other Soldiers, her gloves extend only to her mid-forearms and has an 8 stars shaped jewel on her teal-colored choker. She wears planet shaped teal colored earrings (which is the shape of Planet Neptune) but the earrings were absent in the 1992 version of Sailor Moon, and present in the Sailor Moon Crystal. She is given specific titles throughout the various series, including Soldier of the Deep Waters[8] (or "Depths" in the English manga), Soldier of Embrace,[9] Soldier of the Sea, and Soldier of Comprehension.[10] Her personality is no different from when she is a civilian, although certain special abilities and powers are unavailable to her in her regular civilian form. Just like her partner, Haruka, Michiru has some precognitive abilities while in her normal form. She is able to prophetically predict who the next target of the Death Busters is likely to be next.

Sailor Neptune uses ocean-based attacks (not just water),[11] and carries one of three Talismans carried by the "outer" Sailor Soldiers; Neptune has the Deep Aqua Mirror, which always reveals the truth. She takes a black-and-white approach to her role as a Soldier, one shared by Sailor Uranus, who is virtually always at her side. As she grows stronger, Sailor Neptune gains additional unique special abilities, and at key points her uniform changes to reflect this. The first change takes place in Act 39 of the manga, when she obtains the Neptune Crystal and her outfit becomes similar to that of Super Sailor Moon. She is not given a new title. A similar event takes place in Episode 167 of the anime, and she is given the name Super Sailor Neptune. A third, manga-only form appears in Act 42, also unnamed but analogous to Eternal Sailor Moon (sans wings).[12]

Princess Neptune[edit]

On Silver Millennium, Sailor Neptune was also the princess of her home planet. She was among those given the duty of protecting the Solar System from outside invasion. As Princess Neptune, she dwelt in Triton Castle and wore a sea-green gown. She appears in this form in the original manga Act 41, as well as in supplementary art. It is unknown whether she had a romantic relationship with Princess Uranus at that time.

Special powers and items[edit]

Sailor Neptune using the Deep Aqua Mirror to perform Submarine Reflection in Sailor Moon Crystal.

Even in civilian form, Michiru has some precognitive gifts, as she occasionally states that "the sea is stormy" when there is an evil presence at work. She is not shown using any other special powers in her civilian form, and must first transform into a Sailor Soldier by raising her hand or a special device into the air and shouting a special phrase, originally "Neptune Planet Power, Make-up!"[13] In the manga she eventually gains her Neptune Crystal and this phrase changes to evoke Neptune Crystal Power.[14] In the anime, although she does upgrade to Super Sailor Neptune, the Crystal is never mentioned and her transformation is never shown on screen after the upgrade.[15]

Sailor Neptune's powers are inspired by Roman mythology, where Neptune is the god of the sea. She draws energy from the "deep waters" and blasts it at her foes. She is given three major attacks in the series, and although they all have English names (like those of the other Sailor Soldiers), each is also given kanji in the manga to denote the meaning to Japanese readers. For example, her first attack, Deep Submerge,[16] is given kanji which translate precisely to "deep" () and "submerge" (水没).[9] The intended English pronunciation is given in furigana. This is Sailor Neptune's primary attack for most of the anime series.

In the manga, Michiru owns a special hand mirror which supplements her precognition.[17] This turns out to be the Deep Aqua Mirror, one of three powerful Talismans, the other two of which are carried by Sailor Uranus and Sailor Pluto. In the anime, she does not gain the mirror until she is revealed as one of the Talisman bearers;[18] in either case, it is used in her second attack, Submarine Reflection[19] (深海鏡射, "deep sea mirror shoot").[9] In both the anime and manga, she can use to launch an extremely powerful and devastating attack. In the anime, Michiru can also use it through and dispelling illusions, as seen in the SuperS movie. In the manga, she can also use it for astral projection,[20] and lends it to Chibiusa while she and the other Outer Soldiers are away. Chibiusa invokes the Deep Aqua Mirror's strength and power by stating its name and is able to teleport to Sailor Neptune's location.

Michiru's violin, a Stradivarius worth some five million dollars, is called the Marine Cathédrale and is named after "the temple of the sea".[21] Aside from playing it in concert, she uses it in her third and final attack, which (like the instrument itself) has a French-inspired name: Submarine Violon Tide (深海提琴潮流, "deep sea violin tide"). This third attack is only used in the manga, and was never shown in the anime. This attack is also used by the evil Sailor Neptune in Act 50, where it is renamed Galactica Violon Tide. The Neptune Crystal is perhaps her most important possession, as it is her Sailor Crystal and the source of all her power, which becomes especially important in the fifth story arc. It is given to her by Sailor Saturn.[9]


The character of Sailor Neptune was not developed until partway through the Sailor Moon series, after the Sailor Soldiers were well-established. She was created in tandem with Sailor Uranus, as a pair of "complementary but opposite characters",[22] and meant from the beginning to work alongside Sailor Pluto. Creator Naoko Takeuchi has said that she was shocked by the changes made to Michiru's personality in the anime series, but that she was glad fans still liked the character.[23]

Sailor Neptune's visual design is intended to evoke images of her element, from the choice of colors to the wavy quality of her hair, which Takeuchi even joked might be thought of as seaweed hair. In street clothes, Michiru is supposed to be an "artist type" and to dress accordingly; in fact, initial drawings are extremely elegant and "adult", because she was originally intended to be involved in the all-female Takarazuka Revue with Haruka.[24] Although this was not included in the series itself, Takeuchi stated in an interview that she feels Takarazuka is "the maximum level of feminine emancipation," that as such it was her inspiration for the character of Haruka, and that it seemed natural for Haruka to fall in love with another woman—namely Michiru.[25]

The kanji of Michiru's surname translate as "sea" (, kai) and "king" (, ō). Together, they constitute most of the name of the planet Neptune in Japanese, Kaiōsei (海王星, "Sea King Star"). Her given name is in hiragana michiru (みちる) and so its meaning is not inherent, but the word itself means "to rise" (). The packaging of Irwin dolls released in Canada in 1998 called Michiru by the name Nerissa.


Lauren Landa is the voice of Michiru in the Viz Media dub.

In the Japanese anime series and movies, Michiru Kaioh is voiced by veteran voice actress Masako Katsuki.[26] In the third season of Sailor Moon Crystal, she is voiced by Sayaka Ohara.[27] In the original English dub her name is changed to "Michelle Kaioh" and her voice is provided by Barbara Radecki. Michiru is voiced by Lauren Landa in the Viz Media English dub.[28]

In the stage musicals, Michiru has been played by nine actresses: Kaoru Sakamoto, Chikage Tomita, Miyuki Fuji, Hiroko Tahara, Sara Shimada, Yuhka Asami, Tomoko Inami, Takayo Oyama, and Sayaka Fujioka. Asami, the longest-running of these actresses, knew nothing about Sailor Moon when she was given a role in the musical, but came to greatly admire the character of Michiru after reading the manga and watching the anime. Nao Takagi, who played opposite her as Sailor Uranus, has stated that certain scenes were specially created just for the two of them.[29]

Michiru does not appear in the live-action series.

Reception and influence[edit]

The official Sailor Moon popularity polls listed Michiru Kaioh and Sailor Neptune as separate characters. In 1994, with fifty one choices, Sailor Neptune was the seventh most popular character, receiving almost eight thousand votes more than Michiru, who was the ninth.[30] In early 1996, with fifty one choices, Michiru was the sixteenth most popular character, and Neptune was the twenty second.[31]

Fan fiction featuring Haruka and Michiru is among the most searched-for fan fiction on the Internet,[32] and Erica Friedman of Yuricon has described Haruka and Michiru as being "one of the most romantic, funny, and fun yuri couples, ever."[33] In her response to an academic essay on Sailor Moon by Mary Grigsby, author Emily Ravenwood compared Michiru and Haruka's relationship with Zoisite and Kunzite's relationship explaining that "in both cases, the feminine and masculine attributes are highlighted with a heavy hand (deliberate display of stereotypes)." According to her, the contrast between Michiru and Haruka, is not played so burlesque-ly as that of Zoisite and Kunzite, but still is extreme, with Haruka being the "perfect butch" while Michiru "is the classic high femme. She’s beautiful, she’s artistically talented, she’s gracious and has exquisite manners, she even does things with her hair (the only character to do so in the whole show). She’s never the one driving the car."[34]


In an effort to avoid the controversy that a lesbian character in a cartoon aimed towards a younger audience would cause, given the social mores, Haruka and Michiru's relationship has been censored in certain countries. In North America, the former English dub stated that Haruka and Michiru are cousins, even going so far as to occasionally state this through characters who should not know such information. However, whether in an attempt to be more faithful to the original Japanese or through failure to edit consistently, several episodes of the former English dub retained a noticeable amount of their casual flirting.[35] Due to the censorship and problematic dubbing, some viewers inferred not only a homosexual relationship between the two girls, but also an incestuous one. It has even been implied that the difficulties in dubbing Haruka and Michiru's relationship are part of the reason why there was a gap of several years between the dubbing of the earlier series and the dubbing of Sailor Moon S.[36] In Japan, there were also some controversies around the character.[37]

Viz Media and Studiopolis' English-language redub of the series in 2016 would address the censorship issue by restoring any deleted scenes and preserving the integrity of the original Japanese scripts. In 2019, Viz Media released a new dub of Sailor Moon Sailor Stars, but in what they call a "translation error", they refer to Haruka and Michiru in a booklet as "friends" rather than a lesbian couple. The company later issued an apology on Twitter, in which they acknowledge that the two characters "are not friends, but in fact, partners."[38]

See also[edit]


  1. ^ "Sailor Moon Materials Collection - Third Series". Archived from the original on 2013-10-05. Retrieved 2013-10-04.
  2. ^ Sailor Moon Musical, 1998 Eien Densetsu kaiteiban, Stage 1, after Dream wa Ookiku everybody congratulates Ami on studying abroad and Michiru says, "If you go abroad, rely on me, I'm experienced with that."
  3. ^ BLACK MOON - Sailor Moon, created by Naoko Takeuchi
  4. ^ Sailor Moon episode 180 - "The Brightness of the Calling Stars! Haruka and Company into the War"
  5. ^ a b Takeuchi, Naoko (June 6, 1995). "Back of volume". Bishoujo Senshi Sailor Moon. 10. Kodansha. ISBN 4-06-178806-X.
  6. ^ Takeuchi, Naoko (September 6, 1996). "Act 43". Bishoujo Senshi Sailor Moon. 16. Kodansha. ISBN 4-06-178841-8.
  7. ^ This hobby can be seen in Sailor Moon episode 097, Sailor Moon episode 110.
  8. ^ Takeuchi, Naoko (November 2, 1994). "Act 26". Bishoujo Senshi Sailor Moon. 8. Kodansha. ISBN 4-06-178790-X.
  9. ^ a b c d Takeuchi, Naoko (March 6, 1996). "Act 39". Bishoujo Senshi Sailor Moon. 14. Kodansha. ISBN 4-06-178826-4.
  10. ^ 1997 Winter Special Musical - Pretty Soldier Sailor Moon Sailor Stars (Revised)
  11. ^ Takeuchi, Naoko (February 6, 1995). "Act 29". Bishoujo Senshi Sailor Moon. 9. Kodansha. ISBN 4-06-178797-7.
  12. ^ Takeuchi, Naoko (July 5, 1996). "Act 42". Bishoujo Senshi Sailor Moon. 15. Kodansha. ISBN 4-06-178835-3.
  13. ^ First used in Act 27 of the manga (she raises her hand) and Episode 106 of the anime (she raises the Lip Rod). In the English anime, "Michelle" does not say 'Make up' when transforming, and the phrase "Neptune Star Power" is usually used instead.
  14. ^ "Crystal Power" starting in Act 39, when she acquires her second uniform. No new phrase is used for her third uniform.
  15. ^ She does say the phrase "Neptune Crystal Power, Make up!" in her Sailor Stars image prologue. "". Archived from the original on 2007-06-26. Retrieved 2007-04-13.
  16. ^ First appears in Act 26 of the manga and Episode 92 of the anime. In the English anime, the word Neptune is sometimes added at the beginning.
  17. ^ Takeuchi, Naoko (July 6, 1994). "Act 24". Bishoujo Senshi Sailor Moon. 7. Kodansha. ISBN 4-06-178781-0.
  18. ^ Episode 110.
  19. ^ First appears in Act 31 and the SuperS movie.
  20. ^ Takeuchi, Naoko (July 6, 1995). "The Lover of Princess Kaguya". Bishoujo Senshi Sailor Moon. 11. Kodansha. ISBN 4-06-178809-4.
  21. ^ Takeuchi, Naoko (1994). "Act 26". Bishoujo Senshi Sailor Moon. 8. Kodansha. ISBN 4-06-178790-X.
  22. ^ Takeuchi, Naoko (February 6, 1995). "Act 29". Bishoujo Senshi Sailor Moon. 9. Kodansha. p. 31. ISBN 4-06-178797-7.
  23. ^ Takeuchi, Naoko (September 1996). Bishoujo Senshi Sailormoon Original Picture Collection. III. Kodansha. ISBN 4-06-324518-7.
  24. ^ Takeuchi, Naoko (October 1999). Materials Collection. Kodansha. ISBN 4-06-324521-7.
  25. ^ Kappa magazine, September 1996.
  26. ^ Doi, Hitoshi. "Bishoujo Senshi Sailor Moon". Archived from the original on 2009-05-29. Retrieved 2009-12-31.
  27. ^ "Sailor Moon Crystal Casts Junko Minagawa, Sayaka Ohara as Sailor Uranus and Neptune". Anime News Network. January 27, 2016.
  28. ^ "Interview: Lauren Landa and Erica Mendez, Sailor Neptune and Sailor Uranus". Anime News Network. Retrieved 2017-07-14.
  29. ^ "Hyper Hobby Interview". Archived from the original on 2008-04-19. Retrieved 2007-12-09. Nao: "Some of the scenes were created for the two of us"
  30. ^ Takeuchi, Naoko (June 6, 1995). Bishoujo Senshi Sailor Moon. 10. Kodansha. pp. 138–139. ISBN 4-06-178806-X.
  31. ^ Takeuchi, Naoko (July 5, 1996). Bishoujo Senshi Sailor Moon. 15. Kodansha. ISBN 4-06-178835-3.
  32. ^ Hurd, Gordon (2007-03-20). "Fantastic Fiction". Yahoo! Buzz. Archived from the original on 2007-12-22. Retrieved 2007-07-05.
  33. ^ Friedman, Erica (January 29, 2004). "Yuri Anime/Manga: Sailor Moon". Okazu. Retrieved 2015-05-05.
  34. ^ Ravenwood, Emily (2006-11-08). "More About Gender Dynamics, Etc". Ravenwood's Illustrated Discussions of Sailor Moon. Retrieved September 24, 2019.
  35. ^ Roncero-Menendez, Sara (July 21, 2014). "Sailor Neptune and Uranus Come Out of the Fictional Closet". The Huffington Post.
  36. ^ Sebert, Paul (2000-06-28). "Kissing cousins may bring controversy Cartoon Network juggles controversial topics contained in the "Sailor Moon S" series". The Daily Athenaeum Interactive. Archived from the original on 2008-02-08. Retrieved 2007-02-21.
  37. ^ Johnson, Dany (2001-04-21). "Q & A Rocking the Boat". Akadot. Retrieved 2007-02-21. Their appearance on TV was sensational, something unheard of in TV cartoons.
  38. ^ Peters, Megan (June 25, 2019). "Viz Media Apologizes for Sailor Moon Error about Sailor Uranus and Neptune Romance". Retrieved September 25, 2019.