The episode does this interesting thing where it puts Hiyori in a position where she actually has to watch LIPxLIP perform properly for the first time not manage them, not babysit them, just watch. And the show takes its time with her reaction. She doesn't instantly become a fan. She doesn't have some dramatic conversion moment where the music hits and she tears up and suddenly understands everything. It's more complicated and more honest than that. There's this quiet scene where you can see something clicking for her not fangirling, just genuine recognition of craft. The acknowledgment that what they do is actually hard and actually impressive even if it's not her world.