First Appearance: Act 2 (briefly)
Introduction Episode: Act 3
Human Hair Color: Brownish-Black
Human Hair Style: Shoulder length
Senshi Hair Color: Black
Senshi Hair Style: Long hair
Home: Hikawa Jinja (Shrine)
Dislikes: Karaoke
Occupation: schoolgirl and miko (shrine maiden)
Family: In Act 8, it is revealed that her father is a busy politician. They only get to gether once a month to eat. Rei does not have a good relationship with her father; she would prefer not to meet with him. It turns out that he needs information for an article on the "ideal parent-child relationship." Rei believes that her father hates her and that is why he abandonded her at the shrine. Rei's mother is dead.
Friends: Tsukino Usagi, Mizuno Ami, Kino Makoto
Other: Rei works at her family's shrine. She is often seen staring into the flames of a fire and can predict the future. She was somewhat a loner, but eventually warmed up to Usagi.
Intro Episode: (Act 3) She was blamed for the disappearance of six other miko, due to her special powers. Usagi came to her defense. She was taken by the youma and eventually defeated it using "Youma Taisan!"