Ruise is a strict girl to those around her, but she has a soft spot for Makoto Kamizaki (Ruise's underclassman).
Ruise is the "gloomy public morals committee member" who is in class 2-A at Kibito High School. As the chair of the public morals committee, she has the top grades in her year.
- Ruise's surname Sanjou means "three" (三) (san) and "article" (条) (jou).
- Ruise hates unreasonable things.