otaku_emmy said:
Luna isn't the best with copyright and character tags (even when they're obvious), unfortunately. :T
Most, if not all the idolmaster_cinderella_girls's posts now have all their characters tagged. (except old posts with many characters, didn't really had the faith for now.)

and regarding post #238790 :

The girl on the right is the trainer of the group, her name in the manga seems to be aoki_mei, but, like the producer, she's always called trainer.

otaku_emmy said:
From what I understand, "Zooey" is the name she gave herself because she didn't like being referred to as "The Order Grande". So it's not really her name.
Sorry for the late answer, couldn't really have access to internet in the hospital.
Didn't know that, thought it was just here true name, my bad.