next to his drunken husband, he fills in the gap between his brotherinlaw and his wife who can't tell him about her.

A younger brother of his husband rolls into the house with his busy husband and wife. Even though the night is small and frustrated with other sexes than husbands, they hide it and fulfill their sexual desire by masturbation. After returning from a business trip, the husband drank sake and went to bed as it was. He was held on the spot by his brother-in-law, who knew all about women's hearts, and he could not resist him. He kills a wet manko with his brother-in-law's hard cock and kills her desperately so as not to fall asleep.