More than ten years have passed since then... My name is Matsushita Ukyou. I'm currently assisting at the Chichiizumi Shrine. My grandmother Touka, the head priestess, is still the Breast Priestess of Chichiizumi Shrine, of course. Touka and I were united in the Breast Priestess Succession Ceremony, and we had a lovely daughter named Kyouka, who's growing up to be a big girl. Kyouka is a very pretty girl with slanted eyes resembling my grandma's, and it seems that her breasts are starting to grow just as big as hers... Whenever Kyouka's ample breasts sway, my boob-loving instincts get riled up, which makes me happy some times and annoyed at others. But the three of us, parents and daughter, are having a good time living together. Recently, however, there has been a bit of a problem... Kyouka has been needlessly spoiling me... I'm happy about it, but at the same time I feel like it's not a good thing. I'm not sure how to deal with it, but it's a bit of a problem. This story begins in the midst of such joyous and embarrassing days.