Rizumu is a student who goes to the same school as Aira. She was born on September 3, 1997, the same as Aira. She has horrible grades (stated by the girl herself) and even says that getting a 70 would be a miracle for her, but she is very good at dancing and attends a dance school for Prism Stars named "Pretty Top". She seems to be knowledgeable about love from a certain book of hers. She is romantically interested in Hibiki who is a member of Callings, like Shou. As a result, she easily becomes jealous of any girl who seemingly displays an interest in him. She loves to eat almost anything and especially enjoys meat and chocolate. Her catchphrase is "I'm full of energy!". (Source: Wikipedia, edited)