page 28, last panel
From the flow of the conversation, the first bubble didn't really match to me
("geez, I'm a shrine maiden, you know! A shrine maiden candidate")
I think she was referring to what she said to Sora in the previous page: "Hey Sora-kun, are you interested in shrine maiden?"
So after being scolded, she was just explaining, kinda like:
"geez, (I meant interested in becoming) a shrine maiden, you know! (To be) a shrine maiden candidate"
that makes the flow match the next bubble about Sora having a lot of magic power and the femboy miko