Daiq Machina! S01 E04 Is there any point in supporting a fave? Seriously.

Mai, Haru, and Daiq receive lessons in traditional Japanese dance (Nagasaki Kenban) from Mai's mother. On the way home, Mai witnesses President Mitsuda secretly meeting with Ami, the leader of the underground idol group "Cas Tierra." Mai confronts the President with evidence of the meeting, but... meanwhile, a disturbing shadow creeps up on Mai and Daiq.