- Voice Actor (CV)
- Rikako Aida
- Gender
- Female
- Age
- 16
- Birthday
- September 19
- Role
- Protagonist
- Identity
- A second-year student at Uranohoshi Girls' High School, serving as a member of the school idol group Aqours and its sub-unit Guilty Kiss, with the key role of in-house composer.
Personality
Gentle and reserved
Humble and composed
Easily flustered
Multitalented
Originally enrolled at Otonokizaka Academy, Riko transferred to Uranohoshi Girls' High School and soon joined Aqours, bringing her exceptional piano skills to the group as its primary composer. Soft-spoken and a little shy by nature, she tends to panic under pressure and harbors a well-known fear of dogs—quirks that make her all the more endearing. Through her journey as a school idol, she gradually overcame the shadow of a past performance setback, emerging as the calm and dependable musical backbone of the team.