| The following article is currently being improved for the benefit of all visitors. Pages carrying this template may contain issues which will be fixed as soon as an editor is available to do so. Please bear with us while improvements are being made. Therefore, we request visitors to give editors time and patience to work on the page and assume good faith until the edits are complete. We apologize for the inconvenience this may cause in the meantime.
Please be aware that pages which are not given such a chance before this template is removed will be protected until an experienced editor is available to work on the page.
Michiru Kaiou is the civilian identity and present-day incarnation of Sailor Neptune.
Elegant, sophisticated, though sometimes cold and capable of sharp anger, she has been described by Usagi Tsukino as 'the ideal princess'.
Michiru attends Mugen Gakuen with Haruka Tenou and the younger Hotaru Tomoe. She is patient and caring, almost always offering a smile or laugh to a situation. She isn't the most social person (although she is extremely polite and calm), but when she does get close to someone it's because she truly wants to. She dislikes being patronized and will not indulge others.
This makes her seem like a bit of a snob, and her seeming perfection at everything does not help this perception of her. She is truly a smart young woman, a prodigal violinist and artist, already famous for her endeavors. Her intelligence is also apparent through her acceptance to the Muugen school, a school that's very strict on who's allowed in. (Only genius' are permitted entrance.)
Michiru is an extremely beautiful and delicate-looking girl of slim stature and average height, with deep blue eyes and wavy blue-green hair that falls just past her shoulders. The epitome of elegance and femininity, she has an excellent sense of fashion, being always dressed smartly, and applying makeup or perfectly made up already. Usagi and Minako were both utterly dazzled by her beauty when they first saw her, and Usagi has gone as far as saying that Michiru is exactly what a fairy tale princess would be like.
Michiru first appeared in Act 27. At the beginning of the chapter, she was swimming in an indoor swimming pool when she hears the phone ring and answers it. She then sees the Kaiou Maru outside of a window and says something about picking someone up. She then predicts that the sea is rough on that day. Michiru gets in the Kaiou Maru and the pilot flies her to the race track where Haruka is at so she can pick Haruka up to go to Mugen Academy.
Michiru's surname 海王 (kaiou?), comes from the Japanese name for the planet Neptune and it can translate to "Ocean King." Michiru's first name means "rising." Altogether, her name can be translated to "Rising Ocean King."
The romanization of her surname varies in the various types of media that features or mentions her. For example, in the English dub of the anime and Mixx's English translation of the manga, her last name was romanized as "Kaioh." However, in Kondansha's English translation of the manga, her name was romanized as "Kaiô." Fans also use different romanizations for her name too, such as "Kaio" and "Kaiou." The correct romanization for her surname is actually "Kaiō."
- Michiru owns her own helicopter that she calls the Kaio Maru.
- Michiru shares her first name with Michiru Kiryuu/Cure Bright from "Futari Wa Pretty Cure Splash Star!"