The word 'pretty' sits a bit oddly in her ears. Her face warms up when she hears it, because it's not exactly a new word, but the way it's being used... about her... she follows an urge to pull her hair back behind her shoulders and out of the way, smiling guiltily at how much she likes that little bit of praise.

But he's still helping and she's trying to pay close attention!

"This is not something you do just because you happened to be assigned to this class," she observed. "You probably could teach this class as well as Kudou-sensei, could you not?"

(Youji steps out the door so they won't hear him laugh.)