i think there is high chance it is.ultrarare wrote: Probably the nurse =P
In Emi route, when the nurse found out from Hisao that Emi is avoiding him, he calls Emi's mother.
and said in such direct/ casual way, "It is about your daughter, she is giving trouble again."
It just seems that they have enough conversation and relationship, to be able to speak in such casual tone.
Else, i think the nurse would usually introduce himself, mention about Emi, and her recent doing, before reveling the 'bad news'
it quite a standard practice for professionalism.
So yeah, i think it is quite possible