First appearance in the 17th popular series by Hiyori Yoshioka! Hiyori's crotch was aching with the intense gasping voices heard night after night, the sound of physical collisions, and the passionate and beast-like copulation. Her father-in-law is a good age but has a strong lust and hugs her mother-in-law every night. She is a pit viper who is active all her life. In comparison, her husband is a pale SEX. The heart of a frustrated married woman gradually shifts to her father-in-law. I want to be embraced violently like that. Her desires couldn't be suppressed, and on a dangerous day she went to herself to be embraced by her father-in-law ...