 In Cho-Cho San's home, her grandfather asks her to marry Yamadori, but Cho-Cho San explains that, unlike in Japan where desertion is ground for divorce, in the United States divorce can only be effected by a judge after a period of years.He asks her to return home, if only for the sake of the child, but she rejects her grandfather's ways, saying that she and the entire house belong to Pinkerton.Angrily, her grandfather disowns her and asks that she never enter his house again.