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Michiru Kaiou (anime)
海王 みちる
Kaiō Michiru
Full Name

Michiru/Michelle Kaiou


Moon Kingdom, Crystal Tokyo

Resides in

Tokyo, Japan


Student (Sailor Moon S)
Violinist, painter, art teacher


Michelle (English dub)
Sailor Neptune


"Sailor Soldier of the Sea"
"Sailor Soldier of the Deep"
"Scout of Embrace
Sailor Scout of the Ocean
Soldier of Affinity


Sailor Neptune
Super Sailor Neptune


Solar System Sailor Senshi


March 6th () [1]




165cm or 5'5"





Blood Type

O (Official Site)


Haruka Tenou (first cousin; Cloverway English dub only)


playing the violin, painting, swimming, the colors turquoise and aquamarine, sashimi, music, Haruka/Sailor Uranus


Sea cucumbers, kikurage , physical education, Sailor Moon interfering

First Appearance

A Beautiful Boy? The Secret of Haruka Tenou


Masako Katsuki (Japanese anime)
Barbara Radecki (Cloverway dub)
Lauren Landa (Viz Media redub)

Related Pages

Manga Bio
Sera Myu Bio
Crystal Bio

Michiru Kaiou is the civilian identity and present-day incarnation of Sailor Neptune. This is the first animated depiction of the original manga character.



Main article: Michiru Kaiou#Appearance

Like several other characters from the original manga who appear in the anime, Michiru keeps the same appearance as her original incarnation, except with her hair shortened from long to medium length.

Her first outfit is a dark red long sleeve sailor fuku with a shades of green ribbon at the center of her fuku and a Mugen Academy emblem in the center of her uniform, green and black checkered skirt and black shoes and white short socks. The color of her fuku is black.

Her summer uniform is similar to Rei's as she wears a dark red vest, with a white short sleeve sailor fuku underneath her vest. She retains her shades of green ribbon, her green and black checkered skirt, socks and shoes from her winter school uniform.

Her primary casual outfit which is opposed to both Usagi and Ami's casual outfit. She wears a long cornflower blue formal jacket with a pale yellow long sleeve v-neck undershirt, dark blue long skirt and brown shoes. Her medium length teal hair is now tied in a high ponytail adorned with a purple ribbon at the center of her head. In Sailor Stars, she wears this outfit as her hair was loose instead of a ponytail.


Sailor Moon S

Michiru is Haruka Tennou's lover. Naoko Takeuchi explains that a feminine person and a masculine person would be attracted to each other even if they're both girls.

They agree that anybody who has a talisman must die, even if this means one of them kills the other.

Sailor Moon Sailor Stars

She returns in Sailor Stars and this time they are clearly on the same side as the Inner Senshi, though she and Haruka sell their souls to Galaxia. 



Michiru's name means "to rise" while Kaiou means "sea king." Her original English name Michelle a French feminine form of Michel, from the Hebrew name Michael meaning "Who is like God?"


  • In one episode, she competes against Sailor Mercury/Ami Mizuno in a swimming contest to see who the better swimmer is. Although Ami holds back during the first race, she actually gives it her all in the next race and both are tied as the victors.
  • In the anime, Michiru had two image songs: Reminiscences of the Warrior and Fate Is So Beautiful.
  • In the original English dub, Michiru is named "Michelle".
  • In a attempt to cover up lesbianism, the Cloverway English dub made Michiru and Haruka very close cousins.



  1. Michiru Kaiou 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