Yume City used to flourish but is by now nothing more than a provincial town that even the mayor doesn't set much hopes into. When the old music hall is about to be turned into a garbage disposal facility, the town's chorus group Chansons becomes the last hope to save the building. The goal is to create a show that fills the music hall. The problem - Chansons by now consists of nothing but three housewives. To make the group become successful again the Broadway singer Kurasaka Mio who used to live in Yume City is brought back to Japan to coach the group.
Both are about a person who had no experience as a teacher/coach, but ended up as one and, on a top of that, for a group of troublesome individuals. While busy training them using his/her bizarre methods, his/her words are able to touch the hearts of his/her students and change their lives.