It seems like you're thinking about those girls who are stuck in a relay shift, and how they might be feeling.

In Japanese culture, "shift" () is often used to refer to the concept of social hierarchy or status. So, when you say "シフト制でリレーに張り付いてるガールたち", I think you're referring to girls who are stuck in a particular social tier or ranking within their peer group.

The phrase "張り付いてる" () is an interesting one, as it literally means "to be glued to something". So, in this context, the girls might feel like they're stuck in this particular social hierarchy or relay shift, and can't seem to break free from it.

When you say you're thinking about these girls, I imagine you're considering their feelings of frustration, perhaps even anxiety or despair, as they try to navigate this complex social landscape. You might be wondering what kind of thoughts or emotions they're experiencing as they're stuck in this situation.

Am I correct in assuming that's what you meant?