Furin kankei: Binetsu no hada zawari(2006)

Hikari, a female erotic novelist, is having an affair with Naoki, the editor-in-chief of a publishing company. She has gained popularity by writing novels about their relationship. Only her friend Mizuho knew about their affair, or so she thought. Until that email arrived… Hikari is mentally exhausted by silent phone calls late at night and repeated comments on her blog. The image of a certain obsessive fan keeps popping into Hikari's mind.