Indeed, the girls managed for the day of the audition to repeat over and over again. This stopped once they realized that they had to continue life after Saki moved. In the end the girls asked the rock to end the miracles, and simply hoped that they could always be best friends.
Sorry for the long delay. I had trouble getting to watch the final episode of Natsuiro Kiseki because I felt it was going to be too dumb. Episode 12 went as I expected, but it was better than anticipated because it had a neat final message. This episode gets a 8 out of 10.