Koume Ono

Ono Koume is a side character featured in "Go! Go! 575!". She is a classmate of Matcha, Azuki and Yuzu. She asked to join their group in episode 5 (the special episode) because she saw their dancing clips and wanted to dance with them. Much like the other girls her name and colour scheme is based on a type of food, in her case a kind of Japanese apricot or plum.