Tsutsumi honoo no gotoku

Original title: 突然炎のごとく

Kaori, who can find nothing in her daily life but sex with her male friend Taro, suddenly meets a middle-aged man named Kosuke. She hopes that Kosuke will quench her thirst, but is disappointed to learn that he has a woman named Naomi. Upon learning of Kaori's feelings for him, Taro...