Shirabe Ako is one of the four main Cures in *Suite Pretty Cure♪*. She is a third-year student at Municipal Kanon Elementary School. She is the Princess of Major Land.

Ako's alter ego is Cure Muse. She was previously known as the Masked Pretty Cure, who wore a disguise before revealing her actual form.

Ako is a sweet and considerate girl who enjoys music and loves to sing. She adores her parents and looks up to them, although she gets flustered by her father Mephisto's awkward behavior.