Heh, Oogami didn't expect that her medrom visit would lead to her doing something, but at least she doesn't feel tired anymore.
And I find it funny that she immedaitely denied thinking of the shared umbrella they had. She really is shy to show her feelings.
I like the dynamic that the girl uses a mask to pretend she’s deadpan when the guy is so deadpan his “embarrassed” face is just his regular expression.
Also at the medical office when they said "sensei" they might have meant it in the "doctor" sense of the word instead of "teacher" considering the context. But idk, just guessing.