Yuri is heartbroken after losing her husband. Worried about her, her nephew comes to check on her. Having forgotten his wallet and missed the last train, the nephew ends up staying overnight at Yuri's house. While the nephew is sleeping, he suddenly hears Yuri's moans. Following the sound, he finds Yuri masturbating to distract herself from the grief of losing her husband. Unable to hold back after seeing this, the nephew attacks Yuri.