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"I wish I could've met you sooner, Odango..."
— Seiya's words to Usagi before the Three Lights final concert in episode 195

Seiya Kou is one of the members of the Three Lights idol group, and is the civilian identity of Sailor Star Fighter. This is the first animated depiction of the original manga character.


Seiya is a student at Juuban Municipal High School, and the lead singer of the Three Lights.

Seiya's personality was considerably lighter than that of the other two Starlights. He was much more childlike in his attitude, with a slightly prankish edge to his character, and there were brief moments when he was not thinking about his mission. He had a cheerful disposition and was much more easygoing. He was also more willing to become close to Usagi and her friends, while the other two Starlights mainly kept to themselves and originally refused to work with the Solar System Senshi at all. As mentioned by Taiki and Yaten, Seiya is also a sore loser.


Seiya has blue eyes and long, hip-length raven hair that he keeps tied in a low ponytail.


Sailor Moon Sailor Stars

Seiya is first seen walking past Mamoru and Usagi, who are on their way to the airport. His attention is caught by Usagi, but then he walks away. He later sees Usagi in a shooting location and recognizes her when she was trying to get a good look at what's happening.

Seiya becomes more close to Usagi after the Three Lights joined her school. Over the course of the season's events, Seiya falls in love with Usagi. However, he is severely reprimanded by Taiki and Yaten, when he went as far as to risk his life for her. He becomes disturbed when he comes to know that Usagi has a boyfriend, however, after coming to know that Mamoru is overseas in America, he believes he has a chance with her. He often calls her Odango affectionately, just as Mamoru does.



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Seiya wearing sunglasses
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Seiya and Sailor Star Fighter
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The Three Lights and the Sailor Starlights
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Seiya after getting caked by ChibiChibi
Sailor Senshi

Solar System Sailor Senshi Sailor MoonSailor MercurySailor MarsSailor JupiterSailor VenusSailor Chibi MoonSailor PlutoSailor UranusSailor NeptuneSailor Saturn
Sailor Starlights Sailor Star FighterSailor Star HealerSailor Star Maker
Other Sailor Senshi Sailor Chibi Chibi
Civilian Identities Usagi TsukinoAmi MizunoRei HinoMakoto KinoMinako AinoChibiusa TsukinoSetsuna MeiouHaruka TenouMichiru KaiouHotaru TomoeSeiya KouYaten KouTaiki KouChibi Chibi
Allies Tuxedo MaskLunaArtemisDianaPrincess Kakyuu

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

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