Hi! I just read your post, and I'm also a fan of the Pretty Rhythm series, and I just wanted to ask you why did Ayumi leave? :(
i'm not exactly sure that all of this is true, it might be just gossip, but I think it's important for every prizmmy fan to know this
apparently mia is bullying almost everybody in prism box. she told ayami repeatedly that her dancing sucks and that she should leave. she also told natsu that she looks horrible a lot of times, left on the day of ez do dance mv filming because she didn't like the dancing in the pool scene even though the staff begged her to stay, etc. etc.
back to ayami for now. she was told by mia to quit so many times, that she just gave in. normally, members graduate because they don't want to be an idol anymore, want to do something else, or something happened in their personal lives, and they do it VOLUNTARILY. however, ayami was forced to graduate, and to destroy her dream.
the only one mia is being nice to is reina, but that's probably because her status as leader. really, i hope mia graduates before she can become leader