Shirabe Ako (調辺 アコ Shirabe Ako?) is one of the main Cures of Suite Pretty Cure♪. She is the Princess of Major Land, but has come to the human world to escape the Major Land/Minor Land war at home. She is 9 years old and is in 3rd grade elementary school, a student of the Public Kanon Elementary School and Minamino Souta's classmate. In order to save her father Mephisto, whose heart had been tainted with evil, she disguised herself as the Masked Cure. She finally took off her mask in episode 35 to try to win back her father's gentle heart, and fights alongside Cures Melody, Rhythm and Beat at last. Ako may be the youngest Cure in the group, but she is the most mature.