A married woman's heart and body swaying in hot spring waters and in love. She gave up her job as a piano teacher with a heavy heart after marriage, helping out at the family-run business with her husband and family. But losing trust in her husband who changed after marriage, she steps into an affair. Growing intimate with a man she just met in an outdoor hot spring, she receives a massage after dinner, her tension melting away. Responding to his gentle, warm caresses, she begins to crave more. A woman who had only ever known her husband now takes a man's cock into her soaked pussy, writhing in ecstasy. The next morning, before returning to her ordinary life, she continues to passionately desire him. Her burning passion and lust shake her soul like the rippling waters of a hot spring.