- Birth Name: Kamiyama Riho (北川悠理)
- Nickname: Riitan (りーたん)
- Date of Birth: August 20, 2003
- Place of Birth: Tokyo, Japan
- Blood Type: A
- Height: 148cm
- Bands / Groups:
- She was a member of AKB48 Kenkyuusei. She was a candidate for the 3rd AKB48 Group Draft and was drafted by Team B in the third round. She resigned from the group on October 20, 2018 to focus on her studies.
- Her first choice as a draft member was AKB48.
- She doesn't like to lose, but she has lots of likes and dislikes of food.
- Her hobbies include cleaning her room.
- Her special talent is making double eyelid to single eyelid in an instant.
- She admires Imamura Maria.