A few years have passed since his beloved daughter married and moved to the city... Yuu and her husband have come to the city where their daughter and son-in-law live. When the son-in-law lays eyes on his mother-in-law's big breasts, he can't stop thinking about them. He sneaks a message to his mother-in-law when the rest of the family isn't looking. "I can't help but think about your breasts! Let me touch them!"...