Nee-san.Prepare thyself.It's 'Nee-san'!I've always wanted to be called 'Nee-san', yeah!Eh?
Nee-san...Oh...Murasame nee-san?Ah.. erm... okay.Call me 'Nee-san', would you?No, no, nooo~
'Nee-san'!Oh, that's all wrong~Nee-sa-n!
Using the variant kanji - one often associated with characters like the one in the background hereHarusameeee~Ohh...?