Rumi Kida Female Music teacher and brass band club advisor/conductor. She is so fond of the protagonist that she demands a hug every time they meet. Transformation phrase: "Music Cats Pact! Pretty Cure, Image Cats, Stage On!" "The Image Cat where nature and music play in harmony with the baton! Cure Lumin!" Purple costume.

Yu Nakayama Male high school student Childhood friend of the protagonist. Plays trumpet in the brass band club. Transformation phrase: "Music Cats Pact! Pretty Cure, Image Cats, Stage On!" "The Image Cat where the trumpet's sound and instrumental melodies resonate together! Cure Yuito!" Blue costume.