It was okay. Everyone’s acting was fine, it just felt rushed and messy. The pacing wasn’t good at all and the sister being diagnosed with leukemia came out of nowhere. I also wish they would’ve said what happened with her idol career, because it seemed like the movie was setting up to have her ditch the group but that basically went nowhere. This would’ve been much better as a K-Drama.
TLDR: Good concept, bad execution.