Idk why but I have a strong feeling Erina's time in MM is about to finish up. If not her, Im on board with the one everyone is already worried about, Masaki.
I have the same feeling. She's looking bored atm. When looking at dance shots & lives, she's not putting effort in her dance. Even in the rap part of JJ, everyone is enjoying themselves, and she's more in the background, being kind of bland.
She might be just going for a more "cool" vibe, but it's not coming off like that.