Sakurauchi Riko

She is a slender high school student with long, straight maroon-red hair and striking amber eyes. She typically wears a small yellow hairclip on the left side of her head to keep her bangs in place. Her most common attire is the Uranohoshi Girls' High School uniform, featuring a cream sailor-style blouse and a grey pleated skirt.

Polite, modest, artistic, reserved, realistic, hardworking, easily flustered.

High School Student and School Idol

Riko transferred from the prestigious Otonokizaka Academy in Tokyo to the seaside Uranohoshi Girls' High School in Uchiura. Initially a dedicated pianist who had lost her passion for music, she was recruited by Chika Takami to join the school idol group Aqours. She eventually rediscovered her love for performing and became the group's primary composer.