Yui is a 30-year-old yoga instructor, elegant and health-conscious at work, but intensely sexual in private. She is married with no children and says she should begin trying for a baby soon, yet her husband cannot satisfy her appetite. After meeting through a dating app, she reunites with her lover and skips dinner to prioritize sex at his work apartment. The moment she enters, she drops to her knees for a blowjob and refuses to let go of his cock even as they move deeper inside.