Ironically I just finished watching it. I predicted what would happen pretty early. The pacing and focus on getting the kids into acting and dancing respectively paint a pretty clear picture the story isn't going to be about the mom's idol career. Still, despite seeing everything coming, it was still quite good. I'm not sure if it quite deserves the ratings and hype the first episode is getting (probably a bit of author boost coming off of love is war), but I'm not too bothered since it is quite good. It's pretty absurd they never bothered to figure out who the other one was during the first life, but oh well, I'm sure it'll make the quite the dramatic twist down the line.