The Yumeno family is a big family full of men, and since their mother passed away, Aika is the only woman left... As Aika is the only woman left, she is extremely busy not only with the housework, but also with satisfying the sexual needs of her nine brothers and her father's insatiable penis every day. All day long, from morning to night, she takes care of the whole family and has sex continuously in between her busy schedules. This is the story of a "big daughter" who struggles as the only girl in a family with an insatiable sexual appetite!