Appearing exclusively in the 11th installment of the popular series, Nakano Nanako-chan. A couple struggling to conceive. The husband, under pressure from his father-in-law and work stress, has increased his cigarette consumption. During those 5 minutes when the husband is smoking, the father-in-law, for the sake of assisting Nanako's pregnancy efforts, suddenly engages in rapid, internal insemination! The husband's smoking time is the father-in-law's internal insemination time! Guaranteed pregnancy with 10 internal inseminations! While leisurely smoking down to the filter, the wife succumbs to the father-in-law's internal insemination.