Sumire Okuyama (奥山すみれ) is a member of the IDOLY PRIDE unit TRINITYAiLE. She is a student at Benibana Middle School and her image color is light yellow.

Sumire is a former child prodigy actor who seems too mature to be a junior high school student. She commutes to school from her parents' home in Yamagata Prefecture, but she doesn't mind the difficulties she has endured and she is always smiling. She usually has a middle school-age spirit, but when she is not careful, she has a tendency to speak in a dialect.