Six months have passed since Mitsuyo's divorce. She now lives with her daughter and son-in-law and is content with her life. However, Mitsuyo has a secret. Six months ago, Mitsuyo was celebrating her divorce by drinking alcohol. When her son-in-law returned home, she hugged him, kissed him, and had sex with him, promising to keep it a secret from her daughter. Since then, she has continued her affair with her son-in-law whenever her daughter is not around. One night, after Mitsuyo had finished her bath, her son-in-law came over and gave her oral sex...