Tamade Miu

 is the mother of CHU². She is a world-class violinist who works and lives in the US. Ever since Chiyu was young, she had high expectations of her and forced her to learn different instruments such as the piano and the violin, as well as participate in different music competitions. She often sends different kinds of clothes to Chiyu, some of which were worn by PAREO.

Synopsis
In the 13th episode of BanG Dream! 3rd Season, she temporarily returned to Japan to watch the finals of the "BanG Dream! Girls Band Challenge!".

She later appears again RAISE A SUILEN's Second Band Story.