Cure Rhythm is the Pretty Cure alter ego of Ako Shirabe, a talented young girl from Suite Precure. She is a serious, intelligent, and disciplined character who often acts more mature than her age. As Cure Rhythm, she fights alongside the other Cures against the forces of evil threatening the world and the power of music. Her role in the series is that of a key team member whose strength, composure, and determination help support the group in battle and in their emotional growth.