*Michiru Kaio is the civilian identity and present-day incarnation of Sailor Neptune.

She is portrayed as elegant, sophisticated capable of sharp anger occasionally cold, and fully dedicated to her duty as a Sailor Guardian.

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.

Sailor Neptune' sailor uniform consists of a white, chest-armored leotard, a dark teal sailor collar, a dark teal choker with a dark green gem with golden accents attached to it. A dark teal skirt with a white puffy belt sat above it, and a dark blue bow at the chest and at the back. She wears lace-up loose dark teal high heels, as well as white wrist-length gloves with three dark teal arm bands at the ends, and a dark green circular gem at the center of her chest bow. Her leotard does not have any stripes on it, and her shoulder pads have three layers. A golden tiara with a dark green, oval-shaped gem is located on her forehead, and she wears gold studs and has a planetary object surrounded by a ring dangling from them made to look like her own guardian planet.

As Super Sailor Neptune, she wears an upgraded version of the Sailor Neptune sailor uniform. The only things that change are the length of her back bow, a dark green heart on her front bow, the sailor collar now features one white stripe, her choker has a yellow star attached to it, the shoulder pads last pad is more wing-like and translucent, her teal brooch is now a heart shape and her dark blue back bow was now enlarged and lengthened.

Residency Tokyo, Japan School(s) Mugen Academy Occupation(s) Student, Violinist, Art Teacher, Sailor Guardians Relations Haruka Teno (girlfriend) (first cousin; CWi English dub only) Associates Solar System Sailor Guardian, Elsa Gray Alignment Silver Millennium Birthday March 6th (♓)*