I feel like this could also be applied to Lisa, if/when she gets tired of looking at how good things are going for former-Tsunderia in Phase while she has full-time streaming and things going on in her life sans management support.Muyu certainly has the type of brainworms that if she were to skip the normal audition process that everyone else went though she'd hold it against herself forever, thinking she's some sort of fraud who only got a pity spot due to having friends. Even if there's a mountain of evidence that isn't true.
She's had ongoing issues plaguing her if I remember correctly, and last I saw it seemed like it's been affecting her considerably. There's been a few on-stream breakdowns in the later half of 2023, right?