Haruka married into the famous Kayama family.Her husband's family was kind and comfortable, but she was uneasy about her husband's lack of nightlife.In addition, she feels uncomfortable in her heart that she seems to be so close to her husband and her mother-in-law, Natsuko's parent and child.One day, her husband and Natsuko went out for her shopping together.Haruka, who is left alone, feels a pain in her body while drinking alcohol to relieve her worries, and she indulges in masturbation.In the meantime, her father-in-law comes home, and Haruka, who has her weakness, is toyed with her plump breasts.