|Continuity||Tenchi Muyo: Ryo-Ohki|
|Occupation||Lady-in-Waiting for Lady Seto|
|Relatives||Kasumi Masaki Great-Grandmother |
Katsuhito Masaki Great-Grandfather
Mizune is a native of Masaki Village, the great-granddaughter of Yosho and his wife Kasumi. At some point she left Earth and joined the staff of Lady Seto, becoming one of her ladies-in-waiting, but returns to the Village at times. In fact, was living there when Kiyone and Nobuyuki met.
Mizune has returned to Earth to visit regularly enough that her cousin, Kai, recognized her immediately. She is also friendly with Seina, though she has been ordered to have no contact with him by Lady Seto, at least until his graduation.