While Reiko was happy to see her students reunion after 15 years, she felt a little sad about their growth. On the way home, he meets former student Kashiwagi, who was attending with him. And the two who were excited to talk about memories... Kashiwagi's gentle and earnest confession moves Reiko, who persuades her that it's the power of sake, and surrenders herself. Reiko drowns in her first taste of pleasure that she could not feel with her husband. Her body is deeply engraved with her pleasure.