"Ayumi" and "the Nanase" which, whatever you do, were same as since it was small. Though it is Sisters, there is not it as Sisters, and two people come to love each other as one woman triggered by a certain case. However, "the Ayumi" troubled with relations with the Younger Sister without the Irai left the parents' house with entrance into a school of higher grade, and were going to put "Nanase" and distance….