Maki, who lives with her daughter and son-in-law, has always been serious and only knew about regular sex. But one day, she found out that her daughter and son-in-law Kiyoshi, who were in a sexless relationship, had secretly called a breast torture delivery health service. Seeing this, she couldn't suppress the throbbing from deep within her body and started to torment his nipples 'to maintain their marital harmony.' Unable to control her excitement as Kiyoshi reacted vigorously each time, Maki would sneakily torment his nipples anytime, anywhere, without regard for her daughter's presence.
