Kaname has recovered and, even though the official story is that she's lost the Whispered data, Sousuke is still there as her insurance.  Meanwhile at school, Kaname refuses Shirai's advanced and his girlfriend confronts him only to be dumped.  Now his girlfriend, Mizuki, has to impress her friends with her boyfriend and so gets Sousuke to pretend to be him.  This leads to just a little jealousy from Kaname, especially when the charade winds up in a kiss.