What Does It Mean That Xiaoxiang Quit the Group to Become a Magical Girl?

In fact, the full name of the girl band is Magical Girls Band. The story is about Toyokawa Shoko and others becoming magical girls and then gradually becoming independent girls from ordinary girls. No male protagonist. I am Nagasaki Motoyo, not a comedian, at least not yet. "Xiaoxiang, let's get back together." "Please, I'll do anything!" "Whether something happens to you, I can help you!" "Xiao Mu will also help me convey it." "What do you mean she quit the team to become a magical girl?"