| Name: Kaiou Michiru (Jap) / Michelle (Dub) |
| Nicknames: Michiru-san |
| Royal Personas: Princess Neptune |
| Birthday: March 6 |
| Astrological Sign: Pisces |
| Age(at the beginning): 16 |
| Height: 5'4" / 162.5cm |
| Blood Type: O |
| School: Mugen Gakuen High School (Season 3), Juuban High School (Season 5) |
| Personality Keyword: Responsible | |
| Personality Summary: | |
| Love Life: |