Shirabe, Ako

調辺アコ

Ako is a nine-year-old third-year student at Public Kanon Elementary, sharing a class with Souta, Kanade's younger brother. She displays maturity beyond her years, yet remains cold and unhesitating in lecturing her elders, especially Hibiki and Kanade. Unknown to the Pretty Cures, she concealed her identity as the mysterious fighter Cure Muse, aiding them by using colorful piano keys to create barriers and restraints. She frequently assists the Pretty Cures when they are trapped, but departs to let them finish off the Negatones. She kept her identity hidden behind her mask and remained silent, as her Fairy Tone partner, Dodory, handled all the speaking. She often stated that she would not partner with the Cures until the time was right.
In Episode 35, she reveals herself as the princess of Major Land, the daughter of Aphrodite and Mephisto. After her father went missing, she fled to Kanon Town, disguised herself, and lived with her grandfather, Otokichi. When Mephisto stole the Legendary Score, Ako's potential as a Pretty Cure awakened. As Cure Muse, her short orange hair grows to knee-length and gains two yellow ribbons at each end. In her masked form, her theme color is black; in her true form, it is yellow, and her Fairy Tone is Dodory. She lacks a main weapon but uses her secondary Fairy Tone, Tiry, for her purification attacks. She is the youngest Pretty Cure in the franchise to date.
She introduces herself as "Playing the Goddess' tune, Cure Muse!" (Tsumabiku wa megami no shirabe, Kyua Myuuzu!)